Activity no. 12 Solve the following problems. 1. Circle O and Pare externally tangent. If the radius of a circle O is 12 cm and the radius of circle P Is 8 cm. How far is the center of circle O from the center of circle P.? 2. Circle Q and R are externally tangent. If the radius of circle Q is 10 cm and the diameter of circle R is 8 cm. How far is the center of circle Q from that of circle R ?

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