Question

The volume of a square pyramid is 1728 cm3

and the height is 9 cm. Calculate the surface

area of the pyramid. ​

Answer 1

Answer:

1296

Step-by-step explanation:

V=a^2h/3

1728=a^2*9/3

1728=a^2*3

1728/3=a^2

576=a^2

√576=a

24=a or a=24

therefore surface area of square pyramid= a^2+2a√a^2/4+h^2

=24^2+2*24√24^2/4+9^2

=576+48√576/4+81

=624*√144+81

=624*√225

=624*15

=1296