Sally has a game piece shaped like a square pyramid. the dimensions are shown on the net. what is the surface area of sally's game piece? 80 cm² 96 cm² 56 cm² 40 cm²

I got 56 cm²

Area of Square: Base × Height

4 × 4 = 16

Area of Triangle: 1/2 (Base × Height)

(There are four triangles).

4 × 5 × .5 = 20 × .5 = 10
4 × 5 × .5 = 20 × .5 = 10
4 × 5 × .5 = 20 × .5 = 10
4 × 5 × .5 = 20 × .5 = 10

10 + 10 + 10 + 10 + 16 = 40 + 16 = 56 = 56 cm²

It would be 15 m how i got the answer: (20x20) + b^2 = (25x25)400 + b^2 = 625625-400=225square that and get 15hope this : )