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6. In figure 3.86, circle with centre Mtouches the circle with centre N atpoint T. Radius RM touches thesmaller circle at S. Radii of circlesare 9 cm and 2.5 cm. Find the answersto the following questions hence findthe ratio MS:SR.(1) Find the length of segment MT(2) Find the length of seg MN(3) Find the measure of Z NSM.Fig. 3.86

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