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jenyasd209 [6]
3 years ago
15

You may remember that the area of a triangle is A=12B⋅H, where B is the base of the triangle and H is the height. Suppose that t

he area of a triangle is 288 square feet, and the base is 4 times the height. Find the base of the triangle, in feet.
Mathematics
1 answer:
alexdok [17]3 years ago
7 0

Answer:

Base =48 feet

Step-by-step explanation:

1)

A =\frac{1}{2}*b*h \\ b=4h\\ \\288=\frac{1}{2}*4*h^{2}\\576=4h^{2} :4\\ h^{2} =144\\ h=12

Inserting h=12 into that relation b=4h

b=4*12\\ b=48

<u>Proof:</u>

A=\frac{1}{2}* 48*12\\ A=288 ft^{2}

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