Question

find diameter of the circle whose area is 394.24 sq cm
com'on people!! answer up!!❤​

Answer 1

find diameter of the circle whose area is 394.24 sq cm

Answer 2

Given:

• Area of the circle is 394.24 sq. cm.

Need to find:

• Diameter of the circle ?

Solution:

As we know that,

⋆ Area of circle = πr²

Putting the values,

➜ 394.24 = 22/7 × r²

➜ 394.24 × 7/22 = r²

➜ 125.44 = r²

➜ r = √125.44

➜ r = 11.2

Also, we know :

⋆ Diameter = 2 × r

Putting the values,

➜ 2 × 11.2

➜ 22.4

Therefore, the diameter of the circle is 22.4 cm.

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