Question

plz help me understand this!!!

Answer 1

60 in.² is the answer

Answer 2

Here is ur answer!!

See attachment,
B should be as the area of base of solid, like figure in my att.

So, for problem above B is an area of the right triangle:
B = 1/2 5.12 = 30 in^2 ✔️

Just a note:
15 in the problem above ad h, for the formula to find V.

Faithfully yours,
DivaSept

May be usefull ^_^