In figure 3.86, circle with centre M touches the circle with centre N at point T. Radius RM touches the smaller circle at S. Radii of circles are 9 cm and 2.5 cm. Find the answers to the following questions hence find the ratio MS:SR. (1) Find the length of segment MT (2) Find the length of seg MN (3) Find the measure of ∠NSM.
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