Question

find the circumference and area of circle which radius is 28 CM​

Answer 1

Step-by-step explanation:

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Answer 2

GIVEN THAT

• Radius of a circle = 28 cm

TO FIND

• Circumference and area of the circle.

FORMULA USED

Circumference of the circle = 2 × π × r

Area of the circle = π × r²

SOLUTION

Circumference of the circle = 2 × π × r

= 2 × 22 × 28

7

= 2 × 22 × 4

= 176 cm

So, the circumference of the circle is 176 cm.

NOW,

Area of the circle = π × r²

= 22 × 28 × 28

7

= 22 × 4 × 28

= 2464 cm²

So, the area of the circle is 2464 cm²