Question

the diameter of a circle is 36 kilometers. what is the circles area?
d=36 km
round your answer to the nearest hundredth.

Explanation:

Step1: Find radius from diameter

$r = \frac{d}{2} = \frac{36}{2} = 18$ km

Step2: Apply circle area formula

$A = \pi r^2 = \pi \times 18^2 = 324\pi$

Step3: Calculate and round result

$324\pi \approx 324 \times 3.14159 \approx 1017.88$

Answer:

1017.88 square kilometers