The OC and OD beams share the AOB angle so that the BOD angle is 5/18 AOB and AOC 10/21

Let’s take a look at the figure to solve it.

The value of the angle AOB = 180, since the angle is unfolded.

BOD angle = (5/15) * AOB = 5/18 * 180 = 50.

Also the angle BOD = (10/21) * AOC.

AOC = (21/10) * BOD = (21/10) * 50 = 110.

Then the angle COD = 180 – 110 – 50 = 20.

Answer: BOD = 50.

AOC = 110.

COD = 20.



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