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1 year ago

HELP HELP I NEED HELP

Mathematics

2 answers:

Papessa [141]1 year ago

8 0

Answer:

a. 1385.44 ft²

Step-by-step explanation:

Area of a circle

πr²

Given

r = 21 ft

Solving

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

zheka24 [161]1 year 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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HELP HELP I NEED HELP​

HELP HELP I NEED HELP