Arc Cd Is One-Fourth Of The Circumference Of A Circle. What Is The Radian Measure Of The Central Angle? Startfraction Pi Over 4 Endfraction Radians Startfraction Pi Over 2 Endfraction Radians 2Π Radians 4Π Radians. This web page provides a detailed solution to the geometry problem with steps and explanations. ¼ of a circle is equivalent to 90 degrees of a circle therefore, 180 degrees over 90 degrees will lead us to 2 the answer would be pi over 2 or we say π/2 as what we’ve equated from above.

¼ of a circle is equivalent to 90 degrees of a circle therefore, 180 degrees over 90 degrees will lead us to 2 the answer would be pi over 2 or we say π/2 as what we’ve equated from above. We know that one degree of a circle is equivalent to pi over 180 (π/180) ¼ of a circle is equivalent to 90 degrees of a circle and when we look at 180 degrees over 90 degrees it will give us 2 so. This is derived from the relationship between arc.