Question

I dont understand this im only ten?????

Answer 1

Volume Under Stairs is the Combination of two Different Cuboid

We know, Volume of a Cuboid = l * b * h

Dimensions of Larger Cuboid = 5 * 10 * 7
Dimensions of Smaller Cuboid = 2 * 4 * 10

So, Volume = (5 * 10 * 7) + (2 * 4 * 10)
V = 350 + 80
V = 430 in³

In short, Your Answer would be: Option A

Hope this helps!