1- What is the surface area of the prism?

Question

h ttps://s3.amazonaws.com/tn8prev-prd-cn-tn8general/items/2/e52aad91-cd7d-42ef-983f-10bea77d4b71/assets/627330-3192012-51951-PM-1841731096.png

Please help me understand it. And just take the space between h and the ttps.
Thank you!

Answer 1

The prism has 3 pairs of rectangular faces:
front & back: 15x4
sides: 3x4
top & bottom: 15x3

I assume you know how to find the area of a rectangle, so just add 'em all up.

Answer 2

Thank you, sir.