Question

Use the net to find the surface area of the regular pyramid.


in.2

Answer 1

40 in²

Explanation:

Surface area = 4 triangles + square

= 4[½ × 4 × 3] + 4²

= 4(6) + 16

= 40 in²

Answer 2

Square base = 4 x 4 = 16

(1) triangle = 1/2 x 4 x 3 = 6

There are 4 triangles: 4x6 = 24

Total: 16 +24 = 40 square inches.