contestada

a square pyramid has a height of 7 feet the perimeter of the base is 42 feet. Find the surface area of the pyramid.

Respuesta :

baileyavery
area of a triangle= 1/2b(h)
42÷4=10.5
10.5×10.5=110.25
10.5÷2=5.25
5.25×7=36.75
36.75×4=147
147+110.25=257.25

If I did this correctly, the surface area should be 257.25 feet.

Hope this helps!

Otras preguntas