Question

Rewrite each angle in degree measure. (Do not use a calculator.)

a. 15pi/6
b. 28pi/15

Answer 1

remember, we treat pi as 180.

Rewrite pi as 180 and find the number

Answer 2

so a. 15(180)/6
b. 28(180)/15 ??

Answer 3

Yes. The end number will be in degrees.

Answer 4

in that case I got a. 450 and b. 336

Answer 5

so it would be 450 degrees and 336 degrees?

Answer 6

Anything above 360 is equal to an angle below 360 as a reference angle

Answer 7

what? now I'm confused :o

Answer 8

450 = 360 + 90

So: 450 degrees is the same as 90 degrees and one complete rotation.
E.g.m sin(450 degrees) = sin(90 degrees)

Answer 9

so just to be clear, A would be sin(450) degrees = sin(90) degrees?