Acandy bar box is in the shape of a triangular prism. the volume of the box is 3,240 cubic centimeters.

a triangular prism is shown with base of triangle labeled 24 cm, sides of the triangle labeled 15 cm, and length of the box equal to 30 cm.

part a: what is the height of the box? show your work. (5 points)

part b: what is the approximate amount of cardboard used to make this candy box? explain how you got your answer. (5 points)

i just need part b!