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2 years ago

13

HELP HELP I NEED HELP

2 answers:

Papessa [141]2 years ago

8 0

Answer:

<u>a. 1385.44 ft²</u>

Step-by-step explanation:

<u>Area of a circle</u>

πr²

<u>Given</u>

r = 21 ft

<u>Solving</u>

22/7 x 21 x 21
22 x 3 x 21
66 x 21
1386 ft²
Option A is the closest answer

zheka24 [161]2 years ago

7 0

$\color{red}{ \tt{Given : }}$

$\textbf{ radius = 21 ft }$

$\color{red}{ \tt{Solution : }}$

$\textbf{Area of circle = πr²}$

$\bold{ = \frac{22}{\cancel{7}} × \cancel{21} × 21 }$

$\textbf{= 22 × 3 × 21 }$

$\textbf{= 1386 ft²}$

${\boxed{{area \: = 1386 ft²}}}$

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Marat540 [252]

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Step-by-step explanation:

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3 years ago

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Bingel [31]

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3 years ago