1. Find the circumference of the circle whose :(a) diameter = 21 cm(b) – InterviewSolution

1.

1. Find the circumference of the circle whose :(a) diameter = 21 cm(b) diameter = 6.3 cm

Answer»

(a) CIRCUMFERENCE of CIRCLE= 2πr=2×π×(21÷2) as RADIUS of circle= d÷2=21÷2or it can be 2×22/7×21/2=66cm

(B) it can be 2πr. or. 2×22/7×6.3/2=19.2cm

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