Question

# The circumference of a circle exceeds its diameter by $$15 cm$$ then, the circumference of the circle is

A
22.00cm
B
22.5cm
C
21.01cm
D
None

Solution

## The correct option is C $$22.00 cm$$Let the diameter of the circle be d.Thus, circumference is $$\pi d$$Given    $$πd−d=15$$$$⇒d(π−1)=15$$$$⇒d(227−1)=15$$$$⇒d(157)=15$$$$⇒d=7cm$$So, circumference $$πd=22$$cmMathematics

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