Question

A = 1/2bh, where A is the surface area and b is the base, and H is the height.

What happens to the area if the height is tripled and the base stays the same?

Answer 1

when height turns to 3 times height or 3h

we can replace h with 3h and see what happens

A=1/2b(3h)
A=3/2bh
A=3(1/2bh)
well, the area is trippled