Sarai wrapped a soccer

ball in a box in the shape of a square

pyramid. The box has a base with

sides 12 inches and a slant height of

20 inches. How many square inches of

cardboard were used to make the box?

624 square inches of  cardboard were used to make the box.

Step-by-step explanation:

Slant height of the box = l = 20 inches

Side of the base of the box = s = 12 inch

Area of the base =

Area of triangular face =

There are 4 triangle faces, and single square base , so the total area is :

624 square inches of  cardboard were used to make the box.

answer: the correct one is a

step-by-step explanation: