Cho Δ A B C \Delta ABC Δ A B C vuông tại A , A, A , biết B C = 5 c m ; A B = 3 c m . BC=5cm;\ AB=3cm. B C = 5 c m ; A B = 3 c m . Tính S i n B = ? SinB=? S i n B = ?

S i n B = 0 , 8 SinB=0,8 S i n B = 0 , 8

S i n B = 0 , 6 SinB=0,6 S i n B = 0 , 6

S i n B = 0 , 75 SinB=0,75 S i n B = 0 , 7 5

S i n B = 0 , 25 SinB=0,25 S i n B = 0 , 2 5

Cho Δ A B C \Delta ABC Δ A B C vuông tại A , A, A , biết A B = 1 c m , AB=1cm, A B = 1 c m , cạnh huyền bằng B C = 2 c m . BC=\sqrt{2}cm. B C = 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> c m . Tính ∠ C = ? \angle C=? ∠ C = ?

∠ C = 45 ° \angle C=45\degree ∠ C = 4 5 °

∠ C = 30 ° \angle C=30\degree ∠ C = 3 0 °

∠ C = 60 ° \angle C=60\degree ∠ C = 6 0 °

∠ C = 75 ° \angle C=75\degree ∠ C = 7 5 °

Cho Δ A B C \Delta ABC Δ A B C vuông tại A , A, A , biết A B = 1 c m , AB=1cm, A B = 1 c m , cạnh huyền bằng B C = 2 2 c m . BC=2\sqrt{2}cm. B C = 2 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"> c m . Tính T a n B = ? TanB=? T a n B = ?

T a n B = 7 TanB=\sqrt{7} T a n B = 7 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

T a n B = 3 TanB=\sqrt{3} T a n B = 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

T a n B = 2 TanB=\sqrt{2} T a n B = 2 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

T a n B = 5 TanB=\sqrt{5} T a n B = 5 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

Cho Δ A B C \Delta ABC Δ A B C vuông tại A , A, A , biết A B = 10 c m ; A C = 15 c m . AB=10cm;\ AC=15cm. A B = 1 0 c m ; A C = 1 5 c m . Tính số đo góc B B B (làm tròn đến độ).

∠ B = 56 ° \angle B=56\degree ∠ B = 5 6 °

∠ B = 46 ° \angle B=46\degree ∠ B = 4 6 °

∠ B = 50 ° \angle B=50\degree ∠ B = 5 0 °

∠ B = 60 ° \angle B=60\degree ∠ B = 6 0 °

Trong (h.1) , độ dài cạnh AC bằng:

3 13 3\sqrt{13} 3 1 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

13 \sqrt{13} 1 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

2 13 2\sqrt{13} 2 1 3 <path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z">

hệ thức lượng và tỉ số lượng giác

Authored by Dung Thanh

Mathematics

2nd Grade

Used 15+ times

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MULTIPLE SELECT QUESTION

45 sec • 1 pt

Chọn các đáp án đúng:

$MN^2=NH.HP$

$MN^2=NH.NP$

$MH.NP=MN.MP$

$MH^2=MN.MP$

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn đáp án đúng để điền vào dấu "..."
DI.DE = ...

$IF^2$

$DF^2$

$EF^2$

$FE.FD$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho $\Delta ABC$ vuông tại $A,$ biết $BC=5cm;\ AB=3cm.$ Tính $SinB=?$

$SinB=0,8$

$SinB=0,6$

$SinB=0,75$

$SinB=0,25$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=1cm,$ cạnh huyền bằng $BC=\sqrt{2}cm.$ Tính $\angle C=?$

$\angle C=30\degree$

$\angle C=45\degree$

$\angle C=60\degree$

$\angle C=75\degree$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=1cm,$ cạnh huyền bằng $BC=2\sqrt{2}cm.$ Tính $TanB=?$

$TanB=\sqrt{3}$

$TanB=\sqrt{2}$

$TanB=\sqrt{5}$

$TanB=\sqrt{7}$

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=10cm;\ AC=15cm.$ Tính số đo góc $B$ (làm tròn đến độ).

$\angle B=46\degree$

$\angle B=50\degree$

$\angle B=56\degree$

$\angle B=60\degree$

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Cho ∆ABC vuông tại A, AH là đường cao (h.1). Khi đó độ dài AH bằng:

6,5

4,5

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hệ thức lượng và tỉ số lượng giác

Chọn các đáp án đúng:

Chọn đáp án đúng để điền vào dấu "..."DI.DE = ...

Cho ΔABC\Delta ABCΔABC vuông tại A,A,A, biết BC=5cm; AB=3cm.BC=5cm;\ AB=3cm.BC=5cm; AB=3cm. Tính SinB=?SinB=?SinB=?

Cho ΔABC\Delta ABCΔABC vuông tại A,A,A, biết AB=1cm,AB=1cm,AB=1cm, cạnh huyền bằng BC=2cm.BC=\sqrt{2}cm.BC=2​cm. Tính ∠C=?\angle C=?∠C=?

Cho ΔABC\Delta ABCΔABC vuông tại A,A,A, biết AB=1cm,AB=1cm,AB=1cm, cạnh huyền bằng BC=22cm.BC=2\sqrt{2}cm.BC=22​cm. Tính TanB=?TanB=?TanB=?

Cho ΔABC\Delta ABCΔABC vuông tại A,A,A, biết AB=10cm; AC=15cm.AB=10cm;\ AC=15cm.AB=10cm; AC=15cm. Tính số đo góc BBB (làm tròn đến độ).

Cho ∆ABC vuông tại A, AH là đường cao (h.1). Khi đó độ dài AH bằng:

Chọn các đáp án đúng:

Chọn các đáp án đúng:

Lựa chọn đáp án thích hợp điền vào dấu "..."PE.PQ = ...

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Chọn đáp án đúng để điền vào dấu "..."
DI.DE = ...

Cho $\Delta ABC$ vuông tại $A,$ biết $BC=5cm;\ AB=3cm.$ Tính $SinB=?$

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=1cm,$ cạnh huyền bằng $BC=\sqrt{2}cm.$ Tính $\angle C=?$

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=1cm,$ cạnh huyền bằng $BC=2\sqrt{2}cm.$ Tính $TanB=?$

Cho $\Delta ABC$ vuông tại $A,$ biết $AB=10cm;\ AC=15cm.$ Tính số đo góc $B$ (làm tròn đến độ).

Lựa chọn đáp án thích hợp điền vào dấu "..."
PE.PQ = ...