Question

The diameter of a circle is 28 centimeters. What is the circle's area? Use ​ ≈ 3.14 and round your answer to the nearest hundredth. square centimeters

Answer 1

Answer:

615.44 cm²

Step-by-step explanation:

To find the area of a circle, we can use the formula:

$\text{Area} = \pi \times \text{radius}^2$

Given that the diameter of the circle is 28 centimeters, we can find the radius by dividing the diameter by 2:

$\[ \text{radius} = \dfrac{\text{diameter}}{2} = \dfrac{28}{2} = 14 \text{ centimeters} \]$

Now, substitute the value of the radius into the formula for the area:

$\text{Area} = 3.14 \times 14^2 \\\\ \text{Area} = 3.14 \times 196 \\\\ \text{Area} \approx 615.44 \text{ square centimeters}$

Answer 2

Answer:

615.44

Step-by-step explanation:

Given, diameter(d) = 28 cm

$radius(r)= \frac{d}{2} \\ = \frac{28}{2 } \\ = 14 \: cm$

$area \: of \: circle = \pi {r}^{2} \\ = 3.14 \times {14}^{2} \\ = 615.44$

Area = 615.44