Find the radius of circle whoes circumference is equal to the sum of circumference of two circles of radii 15 cm and 18 cm
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2πr = 2πr¹ + 2πr²
2πr = 2π (r¹ + r²)
r = 15 + 18
r = 33
swayansamishra125:
ans is 33 cm
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