Question

.a square pyramid with base edge 80 m and slant height 100 m
44,800 m2
48,000 m2
16,000 m2
22,400 m2

Answer 1

Area of base:

A = s^2

A = (80)^2

A = 6400

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Area of one triangular face:

A = (bh)/2

A = (80*100)/2

A = 8000/2

A = 4000


So the area of the four lateral triangular faces is


4*4000 = 16000


Add this to the area of the base to get


16000 + 6400 = 22400


So the total surface area of this pyramid is 22400 square meters.

Answer 2

Thanks :)

Answer 3

yw