Question

find the diameter of the circle whose circumference is
77cm
​

Answer 1

Step-by-step explanation:

circumference of a circle=2πr

77=2×22/7×r

77/2= 22/7×r

12.25=r

Answer 2

Answer:

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Step-by-step explanation:

C= 2Pi×r

or,77=2×(22÷7)×r

or,(77×7)÷44=r

Thus,r=12.25cm

and,d=2r=2×12.25=24.5cm