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Earn +20 ptsQ: What is 90 degrees of a circle?
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Continue Learning about Algebra
Do perpendicular line have to make a 90 degree angle?
Yes, because a circle is 360 degrees right?,so when the perpendicular lines meet they cut the circle in half so 360 degrees divided by 4 equals 90 degrees...
Line HA is tangent to the circle If arc AB is 90 degrees and arc AG 20 degrees. What is the measure of angle 1?
35 degrees :)
What is the area of a sector whose central angle is ninety degrees and has a radius of ten inches?
Well a circle has 360 degrees so a sector of 90 degrees has an area equal to 90/360 (or 1/4) of a circle with the equivalent radius. The area of a circle is defined as PI*Radius^2 so the area of a 90 degree sector will be 1/4*PI*Radius^2. The area will be 1/4*3.14*10^2 or 78.5 in^2.
What is a quarter turn in math?
A quarter of the way around a circle would be 90 degrees or pi/2 radians.
What number of degrees is in a circle?
A circle has 360 degrees
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