calculate the area of the circle. formula: a = πr² use 3.14 for pi. a = ? cm² round to the nearest tenth.
calculate the area of the circle. formula: a = πr² use 3.14 for pi. a = ? cm² round to the nearest tenth.
Answer
Explanation:
Step1: Identify the radius value
$r = 15$ cm
Step2: Substitute into the area - formula
$A=\pi r^{2}=3.14\times15^{2}$
Step3: Calculate the result
$A = 3.14\times225=706.5$ cm²
Answer:
$706.5$ cm²