Problem

In circle L, mMLN=20 and the length of MN=79π. Find the length of LM.

Answer

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Answer

Step 3: Calculate the length of LM which is equal to the radius: LM=r=72

Steps

Step 1 :Step 1: Find the circumference of circle L using the given arc MN: C=79π×9=7π

Step 2 :Step 2: Determine the radius of circle L: r=C2π=7π2π=72

Step 3 :Step 3: Calculate the length of LM which is equal to the radius: LM=r=72

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