The complementary angle of 72 degrees is 18 degrees
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The complement of an angle is equal to 90 degrees minus the measure of the angle. Therefore, the complement of a 72 degree angle would be 90 degrees - 72 degrees, which equals 18 degrees.
To find the degree of angle of a side of a triangle, a protractor is needed to measure the angle. Place the '0' on the protractor on the point of the angle and look at the top part to determine degree of angle. To measure the length of a triangle side, a simple ruler can be used to measure the length.
a 60-degree angle
The degree measure of five fourths of a right angle is 112.5 degrees
Measure an angle!
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