Question

find the radius of the circle whose circumference are 44 cm,15.4 cm and 242 CM​

Answer 1

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Circumference of circle (C) = 2πr

➨When C = 44cm ;

↦44 = 2 × π × r

↦22 = π × r

Putting the value of π we get

↦R = 7cm

➨Now ; when C = 15.4cm

↦15.4 = 2 × π ×r

↦7.7 = π × r

Putting the value of π we get;

↦R = 2.45cm

➨Now; when C = 242cm

↦242 = 2 × π × r

↦121 = π × r

Putting the value of π we get

↦R = 38.5cm