Question

What is the lateral surface area of a square pyramid with a side length 11.2 cm and a slant height 20 cm

Answer 1

notice the picture below

the lateral area, or just the area of the sides, well, the sides are really just 4 triangles, so just get the area of each, and sum them up, that's the lateral area

Answer 2

Answer:

b.  448 cm²

Step-by-step explanation: