CPM Homework Help : MC1 Problem 10-37

Find the perimeter and area of each triangle below.

Hint:

The area of a triangle is equal to (0.5)(base)(height). The perimeter of a triangle is the sum of the lengths of all the sides.

Hint (a):
The base of this triangle is $14$ cm and the height is $10$ cm.
Answer (a):
Area $= \left(0.5\right)\left(14 \text{ cm}\right)\left(10 \text{ cm}\right) = 70$ sq cm
Can you find the perimeter?

Hint (b):
If someone placed a string around the entire edge of this triangle, how long would the string have to be?
Answer (b):
Perimeter $= 25 \text{ in.}+ 15 \text{ in.} + 20 \text{ in.} = 60$ inches
Can you find the area?