Question

Q3. If radius =16 cm, calculate the circumference.​

Answer 1

Step-by-step explanation:

Circumference of a cicle in terms of radius:

Circumference = 2·π·r = 2·3.14·16 = 100.53(*)

In terms of diameter:Circumference = π·d = 3.14·32 = 100.48(*)

In terms of area:Circumference C = √4·π·A = √4·π·804.2 = 100.53(*)(*) 100.5 cm exactly or limited to de precision of this calculator (13 decimal places).

Note: for simplicity, the operations above were rounded to 2 decimal places and π was rounded to 3.14.