Question

question 5 of 10
what is the approximate area of the circle shown below?
(image of a circle with radius 21 cm and center c)
a. 132 cm²
b. 1385 cm²
c. 66 cm²
d. 5540 cm²

Explanation:

Step1: Identify the radius

The line from center C is radius: $r = 21$ cm.

Step2: Use area formula for circle

Area $A = \pi r^2$. Take $\pi \approx \frac{22}{7}$.
$A = \frac{22}{7} \times 21^2 = \frac{22}{7} \times 441 = 22 \times 63 = 1386$ cm².

Step3: Match with options

1386 cm² is approximately 1385 cm².

Answer:

B. 1385 cm²