Question

Find the surface area (Leave your answer in terms of π) of a sphere with a circumference of 26π. Use 4πr² to solve. Circumference =2πr 776π 676π 169π 885π

Answer 1

The surface area of the sphere is given by:
A = 4πr²
Where,
r: radius of the sphere.
The circumference is given by:
C = 2πr
From here, we clear the radio:
r = C / 2π
r = 26π / 2π
r = 13
Substituting the radius in the equation of the area we have:
A = 4πr²
A = 4π (13) ²
A = 676π
Answer:
the surface area is:
A = 676π