Question

What is the surface area of sphere with radius 13 ft?

Answer 1

Answer:

Surface area of a sphere= $676\pi ft^2$

Step-by-step explanation:

the surface area of sphere with radius 13 ft

Surface area of a sphere formula is $4\pi r^2$

Where 'r' is the radius of the sphere

r= 13 ft

plug in the radius and find surface area

Surface area of a sphere = $4\pi (13)^2$

= $4\pi *13*13$

= $676\pi$ square feet

Answer 2

SA=4pir^2
SA=4pi13^2
SA=4pi169
SA=676pi ft^2