
Правоъгълен триъгълник с ъгъл 30 градуса
Authored by Silviya Toteva
Mathematics
6th - 9th Grade
10 Questions
Used 11+ times

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1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Вярно ли е, че можем да намерим острите ъгли в правоъгълен триъгълник, ако знаем, че хипотенузата е два пъти по-голяма от негов катет?
Вярно
Грешно
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
На чертежа △ABC е правоъгълен (∢C=90°) и ∢B=30º. Ако AB=5,2 cm и BC=4,5 cm, обиколката на триъгълника е:
12,3 cm
9,7 cm
14,2 cm
19,4 cm
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Основата на равнобедрен триъгълник е 11,6 см, а височината към бедрото му е 5,8 см. Ъглите на триъгълника са:
30°, 75°, 75°
30°, 30°, 120°
30°, 60°, 90°
Не може да се определи
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
На чертежа △ABC е равностранен със страна 16 cm и точка M е среда на AC. Ако MP⊥AB, то AP e:
6 см
2 см
3 см
4 см
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
В △MQP ∢P=90°, ∢QMP=30º и MP=3 cm. Ако MQ=NQ, дължината на MN e:
4.5 см
6 см
7,5 см
9 см
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
На чертежа △ABC е правоъгълен (∢C=90°) и ∢BAC=30º. Ако AB+BC=21 cm, дължината на хипотенузата е:
7 см
10 см
11 см
14 см
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
В △ABC ∢ACB=105º и BC=12 cm. Ако CD е височина и AD=CD, дължината на AD e:
4 см
6 см
8 см
10 см
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