Question

square pyramid has a base length of 16cm and slant height 10cm what is the surface area

Answer 1

Sides of square = 16cm
Slant height of pyramid/ cone = 10 cm
surface area of square = 6a²
= 6*16*16
= 6* 256
= 1536cm²
surface area of cone/ pyramid= πrl
= 22/7* 8 * 10
= 22/7* 80
= 22*80/7
=1760/7
=251.42cm²
Surface area = surface area of square+ surface area of cone
= 1536 + 251.42
=1787.42 cm²