Solution: Find the length of the major arc CD

Given the circle whose diameter AB equals 2 m. If two points C and D lie on the circle and angles ABC and BAD are 18° and 36°, respectively, find the length of the major arc CD.

Find the length of the major arc CD

Problem Statement: ECE Board November 1992

Given the circle whose diameter AB equals 2 m. If two points C and D lie on the circle and angles ABC and BAD are 18° and 36°, respectively, find the length of the major arc CD.

Problem Answer:

The length of the major arc CD is 1.26 m.

Solution:

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