Answer:
(a) 57.8 cm²
(b) 158.7 in²
Step-by-step explanation:
(a)
The area of a circle is denoted by A = 2πr, where r is the radius.
Here the radius is r = 9.2, so plug this in:
A = 2πr
A = 2π * 9.2 ≈ 57.8 cm²
(b)
The diameter is twice the radius, so since the diameter is 50.5 inches, the radius will be 50.5/2 = 25.25 inches.
Plug this into the formula:
A = 2πr
A = 2π * 25.25 ≈ 158.7 in²
~ an aesthetics lover
