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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
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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

User Deondra
by
7.7k points

1 Answer

5 votes
Make a proportion.

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


(6)/(8) = (21)/(h)
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.
User Wilfredo
by
8.2k points
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