Question

Find the radian measure of an angle of -280degrees

Answer 1

a. 9/-14pi
b. -14pi/9 *My answer
c. 9pi/-14
d. -14/9pi

Answer 2

2 pi = 360 degrees. Does that help?

Answer 3

Um not really... sorry

Answer 4

This is the conversion factors it shows how many radians are equal to one degree.

Answer 5

well pi would never be in the denominator so eliminate 2 of them...

Answer 6

You have -280 degrees. So to get -280 to radians you multiplly by -280(2pi/360)

Answer 7

Soo.. B?

Answer 8

The reason why I did that is because 280 is in degrees and 360 is also in degrees. So, this would also cancel out as they are divide by each other.

Answer 9

Im sorry but I am so so confused

Answer 10

There are 2 PI radians per 360°

So in -280° there are 2*PI * (-280 /360) radians =
2*PI * (-70/90)
= PI * (-140/90)
=PI* (-14/9) =
(-14/9) * PI
= b (your answer)

Answer 11

@AmyEC so... what's the ANGLE measure of -280 degrees?

Answer 12

well, wait... dohh is already in angle. .ok

Answer 13

\(\bf radians=\cfrac{{\color{brown}{ degrees}}\cdot \pi}{180}\)

Answer 14

Thank you so much. Do you think you could help with another?

Answer 15

well... easier to post anew, so if we dunno, someone else may, and we can revise each other

Answer 16

Okay, THank you!