Question

Need help i dont understand

Answer 1

The area of the triangle on the right side is 
Area = base*height/2
Area = 12*5/2
Area = 60/2
Area = 30 square inches

Multiply the area of the triangular base by the depth or height of the prism 15
Volume = (area of base)*(depth)
Volume = 30*15
Volume = 450 cubic inches

Answer: Choice D

Answer 2

Hello!

Two of these figures could create a rectangular prism when combined. Therefore, we can multiply the base by the height and divide it by two.

15(12)=180 (Base
180(5)=900

Now we divide by 2.

900/2=450

Therefore, our answer is D) 450 in³

I hope this helps!