the circumference of a circle exceeds its diameter by 18 cm find the radius of the circle
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2πr =2r +18. 2πr-2r =18. 2r(π-1 )=18. r=9/π-1
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Answer:
2πr-2r=18
2r(π-1)=18
2r(22/7-1)=18
2r×15/7=18
2r=18×7/15
2r=42/5
r=42/10
r=4.2
Step-by-step explanation:
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