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Earn +20 ptsQ: Why do you use pi when you can just use 360?
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What is the angle of 180 degrees?
if 360 degrees is equal to 2 Pi (3.14...) so 180 degrees is equal to 1 PI or just Pi
Given a circle with a radius of 2 which is the length of an arc measuring 75?
circumference = 4 pi, so arc is 4 pi x 75/360 = 300 pi /360 = 5 pi/6 = 2.62
How do you convert 18 degrees to radians expressing the answer as a multiple of pi?
A radian is an arc of a circle whose size is the same as its radius and in degrees it is about 57.3 degrees because there are 360 degrees around a circle and so 2*pi radians = 360 degrees. 2 pi = 360 degrees therefore 18 degrees = 2 pi x 18/360 radians = 0.1 pi radians
What is radius of a circle with a central angle of 136 degrees and arc length of 1010cm?
Arc length = 136*2*pi*r/360So r = 360*arc length/(136*2*pi) = 425.5 cmArc length = 136*2*pi*r/360So r = 360*arc length/(136*2*pi) = 425.5 cmArc length = 136*2*pi*r/360So r = 360*arc length/(136*2*pi) = 425.5 cmArc length = 136*2*pi*r/360So r = 360*arc length/(136*2*pi) = 425.5 cm
2 pi radians is how many degrees?
360
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