Question

The diameter of a circular glass lens is 8. 7 centimeters. Paige uses the edge of the lens to trace a circle on a sheet of paper. What is the estimated circumference of the circle?.

Answer 1

The circumference of the circle will be 27.34 cm.

Given Diameter of the glass lens is 8.7 cm.

What is the circumference of the circle?

Given Diameter of the glass lens  D = 8.7 cm

The circumference of circle is given by  = πD

where ,   π = constant

              D= Diameter

putting the value of D in the above formula of circumference

The circumference of circle is given by  = πD

The circumference of circle is given by  = π $\times 8.7$

The circumference of circle is given by  = 27.37 cm  (π=3.14)

Hence the circumference of the circle will be 27.34 cm.

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