A geologist has a rock that is shaped like a rectangular pyramid that she would like to give as a gift. A model of the rock is shown.
A rectangular pyramid with base dimensions of 5 inches by 4 inches. The large triangular face has a height of 6.8 inches. The small triangular face has a height of 7 inches.
How much wrapping paper is needed without overlapping?
41 in2
68 in2
82 in2
102 in2