Question

Find the area of the circle. Use 3.14 or
`(22)/(7)` for
`\pi` . Round your answer to the nearest hundredth, if necessary.

Answer 1

63.59 ft²

Explanation:

Area of circle

• πr² or πd²/4 [because radius = diameter/2]
• 3.14 x (9)² / 4
• 3.14 x 81/4
• 3.14 x 20.25
• 63.59 ft² (nearest hundredth)

Answer 2

`\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}`

• Given - a circle with diameter = 9 ft

• To find - area of the given circle

Formula -

`\qquad\quad\bold\pink{area \: of \: circle= \pi \: r {}^(2) }`

now , we observe that we're not provided with the radius of the circle ! hence , let's find the radius of the circle now ~

`\qquad\quad{radius = (diameter)/(2) } \\ \\ \longrightarrow \: radius = (9)/(2) = 4.5 \: ft`

substituting the value of radius in the formula used to calculate area -

`area = \pi \: r {}^(2) \\ \\ \longrightarrow \: (22)/(7) * 4.5 * 4.5 \\ \\ \longrightarrow \: (445.5)/(7) \\ \\ \longrightarrow \: 63.6 \: ft {}^(2) \: (approx.)`

hope helpful ~