Find the radius of a circle whose circumference is equal to the sum of the circumference two circle of diameter 36 cm and 20cm
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Answer:
Radius of circle =D/2
Radius of first circle R1= 36/2=18cm
Radius of second circle R2=20/2=10cm
ATQ
circumference of first circle + circumference of second circle = circumference new circle
2πR=2πR1+2πR2
2π(R)= 2π(R1+R2)
R = R1+R2
R= 18 + 10 =28 cm
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