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Earn +20 ptsQ: What is the external angle if the internal angle is 135 degree?
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Why is 135degrees the measurement of an angle of an octagon?
The external angle of a polygon is equal to 360/n, n representing the number of sides in the polygon. Since an octagon has eight sides, the external angle of a regular octagon is 360/8 = 45 degrees. Since a straight angle in a polygon would be equal to 180 degrees, you subtract the measure of the external angle from this, to make an internal angle of 180 - 45 = 135 degrees.
What is the triangle with a 135 degree interior angle called?
obtuse
What is the complement of a 65 degree angle?
the completment of a 65 degree angle is 130
What a 45 degree angle in supplement measure?
The supplement of 45 degrees is 135 degrees.
What is the measure of each angle on a octagon?
Each of the internal angles on a regular octagon measures 135 degrees.
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