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What is the total angle measurement of a quadrangle?
360
What is the total angle measurement for a pentagon?
108 degrees
How do I find the length of the arc of a circle with only the measurement of an exterior angle?
That is not enough information.
How do you find the measurement of an arc or angle on a circle?
the general formula is arc length is equal the radius times the angle. s=r< s=arc length r=radius <=angle
Why do you have to convert degrees to radian?
Radian is a more natural way of expressing an angle. By this I mean it is related to the natural relationship between a circle (actually an arc of a circle) and the radius of the circle, while degrees are a measurement created by man.If you take an angle of 1 radian, the measurement along the arc is equal to the length of the radius. Hence the term radian has the same root as radius. So if you multiply the angle measurement (in radians) by the radius, then you have the length of the arc.If you have a full circle (360° is equal to 2*pi radians), the circumference (length of an 'arc' going all the way around the circle) is 2*pi*radius.
