Question

Calculate the surface area of sphere if the circumference of great circle is 176 cm².​

Answer 1

Answer:

9852 Rounded to the nearest whole number.

Step-by-step explanation:

C = 2$\pi$r  Fill in what we know to solve for r

176 = 2$\pi$r  Divide both side by 2$\pi$

r = 28 rounded to the nearest whole number.

The formula for the area of a circle is

A = 4$\pi$$r^{2}$

A = 4$\pi$$28^{2}$

A = 9852 Rounded to the nearest whole number