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3 years ago

10

The length of the base of a triangle is twice its height. if the area of the triangle is 225 square kilometers, find the height

1 answer:

Anon25 [30]3 years ago

3 0

Let
x----------> length of the base
y----------> height

we know that
[the area of triangle]=[length of the base]*[height]/2
x=2y
A=225 km²
225=x*y/2---------> 225=(2y)*y/2-----> y²=225--------> y=15 km
x=2y--------> x=2*15------> x=30 km

the answer is
the height is 15 km

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