Question
The diameter of a circle is 75 cm less than the
circumference. What is the diameter of the circle in cm?Solution
2 π R = 2R+75 2πR - 2R= 75 2R (π-1) = 75 2R (22/7 - 1) = 75 2R ×15/7 = 75 or 2R= 35 D= 35 cm.
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