1 Answer

Cherry Wu · Answer 1 · 2022-01-20T10:10:57+0000

Given:

The figure of a triangle.

To find:

The exterior angle of the triangle m∠NPI.

Solution:

According to the exterior angle theorem, value of exterior angle of a triangle is equal to the sum of the opposite interior angles.

Using the exterior angle theorem, we get

$m\angle NPI=65^\circ+78^\circ$

$m\angle NPI=143^\circ$

Therefore, the measure of angle NPI is 143 degrees.

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