Question

A circular plate has circumference 20.1 inches. What is the area of this​ plate? Use 3.14 for pi.

Answer 1

Given:

Circumference of circle : 20.1 inch

To Find:

Area of plate

Solution:

Circumference of circle = $2\pi r$

20.1 = 2 (3.14)(r)

r = $\dfrac{20.1}{2\times3.14}$

r = $\dfrac{20.1}{6.28}$

r = 3.20 inch

Now area of plate = $\pi r^2$

Area of plate = 3.14 × 3.2 × 3.2

Area of plate = 32.15 Square inch

$\boxed{Area \:of \:plate \:is \:\bold{32.5} \: Square \:inch}$

Answer 2

Answer:

Circumference of circle : 20.1 inch

To Find:

Area of plate

Solution:

Circumference of circle = 2\pi r2πr

20.1 = 2 (3.14)(r)

r = \dfrac{20.1}{2\times3.14}

2×3.14

20.1

r = \dfrac{20.1}{6.28}

6.28

20.1

r = 3.20 inch

Now area of plate = \pi r^2πr

2

Area of plate = 3.14 × 3.2 × 3.2

Area of plate = 32.15 Square inch

Step-by-step explanation:

please add me in brainlist