Question

Find the surface area of the right prism with an equilateral triangular base with side 12.6 cm and height 21.3 cm.

Answer 1

surface area of a right prism with equilateral triangular base is \[SA = sa + 3sh\]
where s = side
h= height of prism
a = altitude of the triangular base

does that help?

Answer 2

very much ty

Answer 3

welcome ^_^