How to find the surface area of a prism with isosceles triangle bases?

Question

I have to find the surface area of a prism with isosceles triangle bases, the height of one of the triangle bases is 6m and the length of the triangle base is 4m. The other measurement given is the line that connects the bases at the top and it is 10m.

Answer 1

Determine the area of the triangle - there is a formula

Determine the length of the equal sides of the triangle using Pythagoras.

Determine the area of the two equal sides and the one unequal side