If the sum of circumferences of two circles wirh radii r1 & r2 is equal to the circumference of a circle of radius r, then what is true
1 r1+ r2 = r or sum of their squares= r2

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  1. "sum of circumferences of two circles wirh radii r1 & r2"
    = 2πr1 + 2πr2
    "the circumference of a circle of radius r"
    = 2πr

    they are equal ....

    2πr1 + 2πr2 = 2πr
    2π(r1 + r2) = 2πr
    divide both sides by 2π

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