Question

Find the area of a circle with diameter 18 yd.

Use the value 3.14 for TT, and do not round your answer.
Be sure to Include the correct unit In your answer.

Answer 1

`\sf\large \green{\underbrace{\red{Answer⋆}}}:`

`\sf{\Large {Area \: of \: circle \: is \: 254.34 \: {yd}^(2)}}`

Explanation:

`\textsf{\blue{\underline{\large{To find :-}}}}`

The area of the circle

`\textsf{\red{\underline{\large{Given :-}}}}`

Diameter (d) = 18 yd

radius (r) = ?

π = 3.14

`\textsf{\orange{\underline{\underline{\huge{Solution :-}}}}}`

First we have to find radius

`\sf \purple{radius = (diameter)/(2)} \\ </p><p> \sf r = (d)/(2) \\ </p><p> \sf r = (18)/(2) \\ </p><p> \sf r = 9 \: yd`

With the help of radius we can find area

`\sf \green{Area \: of \: circle = \pi {radius}^(2)} \\ </p><p> \sf Area \: of \: circle = \pi {r}^(2) \\ </p><p> \sf Area = 3.14 * {9}^(2) \\ </p><p> \sf Area = 3.14 * 81 \\ </p><p> \sf { \pink{ Area = 254.34 \: {yd}^(2)}}`

Answer 2

• Area of the circle is 254.34 yd²

Explanation:

Given:

• Diameter of circle = 18 yd
• π = 3.14

To Find:

• Area of circle.

Solution:

• Diameter = 18 yd
• Radius = 18/2 = 9 yd

We know that,

`\: \: \: \: \dashrightarrow \: \: \: \: \: {\underline{\boxed{\sf{Area \: of \: circle = \pi r^2}}}} \\ \\`

Substituting the required values,

`\\`

`\: \: \: \: \dashrightarrow \: \: \: \: \: \sf Area_((circle)) = 3.14 * {(9)}^(2) \\ \\`

`\: \: \: \: \dashrightarrow \: \: \: \: \: \sf Area_((circle)) = 3.14 * 81 \\ \\`

`\: \: \: \: \dashrightarrow { \: \: \: \: \: \sf Area_((circle)) = 254.34 \: {yd}^(2)} \\ \\`

Hence,

• Area of the circle is 254.34 yd²