Question

Find the surface area of the square pyramid 8mm 6mm

Answer 1

136 mm²

Explanation:

`A=a^(2) +2a\sqrt{(a^(2) )/(4) } +h^(2)`

`A=6^(2) +2(6)\sqrt{(6^(2) )/(4) } +8^(2)`

`A=36 +12\sqrt{(36 )/(4) } +64`

`A=36 +12√(9 ) +64`

`A=36 +12(3)+64`

`A=36 +36+64`

A = 136