Question

Find the circumfrence of a circle whose diameter is 45 cm.

Answer 1

Answer:

circumference of a circle = 2πr

here diameter=45

therefore radius =45/2

the 2πr=2×22/7×45/2=141.3cm

hope this helpss...

Answer 2

Answer:

141.3cm.

Step-by-step explanation:

Diameter = 45cm.

Radius = 45/2 cm

So,

Circumference = 2πr

Circumference = 2 * 3.14 * 45/2

Circumference =  3.14 * 45

Circumference = 141.3cm.

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