Similar Triangles Perimeter and Altitudes

∆ABC ~ ∆DEF such that AB = 9.1 cm and DE = 6.5 cm. If the perimeter of ∆DEF is 25 cm, what is the perimeter of ∆ABC?

• 25cm

• 30cm

• 35cm

• 45cm

in the fig, if DE ll BC then find the value of AD

• 16

• 8

• 4

• 32

Tags

CCSS.HSG.SRT.B.4

∆ABC ~ ∆QRP, ar(ΔABC)/ar(ΔPQR) =9/4

AB = 18 cm and BC = 15 cm, then find the length of PR.

• 20cm

• 10cm

• 15cm

• 25cm

Find PR

• 25CM

• 10CM

• 5CM

• NONE

Tags

CCSS.HSG.CO.C.9

Two triangles are similar, and the ratio of each pair of corresponding sides is 3:2. Which statement regarding the two triangles is not true?

• Their areas have a ratio of 9:4.

• Their altitudes have a ratio of 3:2.

• Their perimeters have a ratio of 3:2.

• Their corresponding angles have a ratio of 3:2.

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Triangle ABC is similar to triangle DEF. The lengths of the sides of ΔABC are 8, 15, and 17. What is the length of the Longest side of ΔDEF if its perimeter is 120?

Find side length X.

• 16

• 18

• 2.4

• 15

Tags

CCSS.HSG.SRT.A.2

Find side length X.

• 30

• 25

• 15

• 40

Tags

CCSS.HSG.SRT.A.2

Are the triangles similar?

• Yes

• No

Tags

CCSS.HSG.SRT.A.2