Math, asked by juanyaruro777, 9 months ago

2. A circle has a radius of 45 mm. a) calculate the circumference of the circle.

Answers

Answered by abhirajsingh9546

1

Answer:

given,

radius of circle=45mm=4.5cm

we know that,

formula,

circumference of the that circle = 2×22÷7×r

then,

c=2×22÷7×4.5

=28.29 (approx.)

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