Question

find the diameter of a circle where diameter is 24 cm​

Answer 1

Explanation:

Area of a circle in terms of radius:

Area = π·r2 = 3.14·122 = 452.4 square cm(*)

Area of a circle in terms of diameter:

Area = π·(d

2

)2 = 3.14·(24

2

)2 = 3.14·(12)2 = 452.4 square cm(*)

Area of a circle in terms of circumference:

Area = C2

4π

= 75.42

4π

= 5685.16

(4·3.14)

= 5685.16

12.56

= 452.4