Express each angle in degree measure
3pie/2
Can someone explain to me how to do this problem?
2006-10-03 13:32:49 · 3 answers · asked by Sandra M 1 in Education & Reference ➔ Homework Help
A circle can be divided into 2π radians, 360 degrees, or other measurements
2πradians = 360 degrees
1 radian = 180/π degrees
180/π degrees / 1 radian = 1
3π/2 radians x (180/π degrees / 1 radian)
= 270 degrees
Both are three quarters of a circle.
(FYI, it's pi, not pie.)
2006-10-03 13:43:45 · answer #1 · answered by novangelis 7 · 0⤊ 0⤋
there are 360 degrees in a circle, and 2pie radians in a circle.
So what you do is use the conversion factor 360 degrees / 2pie radians, and multiply that by 3pie / 2. You're allowed to do this because 360 degrees / 2 pie equals 1, and 1 multiplied to anything does not change it.
Therefore:
(3pie x 360) / (2pie x 2)
You can figure it out from there. I don't want to just give you the answer like most of the "helpers".
2006-10-03 20:37:15 · answer #2 · answered by khard 6 · 0⤊ 0⤋
multiply by 180/pi
(1 * pi) * 180/pi = 180 deg
(2 * pi) * 180/pi = 360 deg
(3 * pi) * 180/pi = 540 deg
(3 * pi) / 2 * 180/pi = 270
2006-10-03 20:37:54 · answer #3 · answered by T 3 · 0⤊ 1⤋