Question

the circumference of a circle exceeds its diameter by 18 cm find the radius of the circle

Answer 1

2πr =2r +18. 2πr-2r =18. 2r(π-1 )=18. r=9/π-1

Answer 2

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: