What is the volume of foam, in cubic feet, required to make the ramp?

Question

anonymous · Answer

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ash2326 · Answer

Volume of foam = volume of the solid.
Voulme= Area of the triangle * width 
 @Qwerty90 answer me
What's the area of the right triangle?

anonymous · Answer

a=1/2bh so a=1/2 4 (1.5) 6?

dape · Answer

It's just half the volume of the corresponding parallelepiped, which is obtained by multiplying all sides:
$$ V = \frac{1.5*4*1.8}{2} ft^3 = 5.2 ft^3 $$

dape · Answer

It's supposed to be 5.4 ft^3, sorry.

ash2326 · Answer

Yeah , you're right
$$A=\frac{1}{2} \times 4\times 1.5=3 ft^2$$
$$Volume= 3 ft^2 \times 1.8= 5.4 ft^3$$

anonymous · Answer

wait... you see I am solving it the way it was in the lesson. I thought since it was a triangle i would use its formula but I guess I could have just multiplied together and got that answer

anonymous · Answer

But I do understand how you got the answer.. thank you!