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3 years ago

A triangle has height 15in. and area 120in squared. what is the length of its base?

Mathematics

2 answers:

Svetlanka [38]3 years ago

8 0

area for triangle = 1/2 x b x h

area = 120

height = 15

120 = 1/2 * b * 15

divide both side by 1/2

240 = b *15

divide both sides by 15

b = 240/15 = 16

base is 16 inches

check: 1/2* 16 *15 = 120 sq. in.

Brums [2.3K]3 years ago

3 0

The formula for the area of a triangle is Area=.5(b)(h)

So fill in what you know:

120=.5b*15

Then solve for b.

120=7.5b
b=16

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