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Arlecino [84]
3 years ago
6

Please show all work

Mathematics
1 answer:
san4es73 [151]3 years ago
6 0

Answer:

<h2>I. 336 ft²</h2>

Step-by-step explanation:

We have

two right triangle with legs 6ft and 8ft

one rectangle 8ft × 12ft

one rectangle 6ft × 12ft

one rectangle 10ft × 12ft

The formula of an area of a right triangle:

A=\dfrac{ab}{2}

a,b - legs

Substitute:

A_1=\dfrac{(6)(8)}{2}=(3)(8)=24\ ft^2

The formula of an area of a rectangle:

A=lw

l,w - length, width (dimensions of rectangle)

Substitute:

A_2=(6)(12)=72\ ft^2\\\\A_3=(8)(12)=96\ ft^2\\\\A_4=(10)(12)=120\ ft^2

The Surface Area:

S.A.=2A_1+A_2+A_3+A_4\\\\S.A.=(2)(24)+72+96+120=336\ ft^2

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3 years ago
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