Question

Draw a circle of radius 3.5 cm. Use a thread to measure the length of circle. Compare the length

of the circle with the circumference of the circle. Use the formula ‘ = 2 ′ to calculate the

circumference of the circle. ( Note:- (read as pi) = 22​

Answer 1

Answer:

The circumference of a circle can be easily found from the area of the circle. From the area of the circle, we can compute the radius of the circle, and then from the radius, the circumference of the circle can be calculated. A = πr2, r=√Aπ r = A π , and C = 2πr = 2π√Aπ π A π .