A square pyramid has a side of 10.2 dm and a slant height of 21.5 dm. What is the surface area?
a. 104.04 cm²
b. 490.62 cm²
C, 877.2 cm²
d. 981.24 cm2
Solution :
height h = 21.5 m
slant height s = 22.096606074237 m
side length a = 10.2 m
perimeter of base P = 40.8 m
lateral edge length e = 22.677521910473 m
1/2 side length r = 5.1 m
volume V = 745.62 m3
lateral surface area L = 450.77076391443 m2
base surface area B = 104.04 cm²
total surface area A = 554.81076391443 m2
Base Surface Area of a square pyramid (square):
