A triangle with a base of 6cm and a height of 8cm is similar to a triangle with base 21cm. What is the height of the second triangle

Question

asked Mar 17, 2019 226k views

1 Answer

Wilfredo · Answer 1 · 2019-03-20T22:08:02+0000

Make a proportion.

Do base over height;
(base)/(height)

.

h is the height of the second triangle. Solve for h.

Cross multiply.

(6)/(8) = (21)/(h)

6h = 168
h = 28

The height of the second triangle is 28 cm.