help please?

User Generated

rzreltbzrm

Mathematics

Description

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Explanation & Answer

Measure of angles 16, 20 and 11 is 180 degree since they are three internal angles of a triangle.

So to find the measure of angle 11 we can add the other two angles and then subtract sum from 180.

Measure of angle 11 = 180 –(84 + 40) = 56 deg.

Hope this helps.


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