Question

Find the surface area of the regular pyramid

Answer 1

Greetings from Brazil!

`4(1)/(2) =(9)/(2)`

`Af1=(b\cdot h)/(2) \cdot 4\\\\\\Af1=((9)/(2) \cdot 4)/(2) \cdot 4\\\\\\Af1=((36)/(2) )/(2) \cdot 4\\\\\\Af1=(18)/(2) \cdot 4\\\\Af1=9\cdot 4\\\\Af1=36~m^2`

`Af2=l^2\\\\Af2=((9)/(2))^2\\\\\ Af2=(81)/(4)\\\\Af2=20,25~m^2`

`At=Af1+Af2\\At=36+20,25\\At=56,25~m^2`

I hope I helped you! =)