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The fundamental definition of a radian: take a piece of string as long as the radius of a circle, and bend it round the circumference, The angle it subtends at the centre is a radian.
<span>Because you need 2*pi radii to to go all round a circle, it follows that 2*pi radians = 360 degrees; 1 radian = 180/pi degrees. </span>
<span>An arc length L subtends an angle (L/r) radians where r is the radius of the circle.</span>
Answer:
B=16
Step-by-step explanation:
If 75% is 12, 100% would be 16. B = 16!
M<NQN = 180° - 2[180° - (60° + 80°)]
m<NQM = 100°
~100°
4 1/5 is converted to 420%
Hope this helps!