## Sariah Group Title Convert the angle in radians to degrees. \LARGE \frac{12\pi}{9} 2 years ago 2 years ago

1. Sariah Group Title

|dw:1322510982773:dw|

2. cwrw238 Group Title

use the identity pi radians = 180 degrees

3. Sariah Group Title

a. 240 b. 239 c. 242 d. 241

4. Sariah Group Title

One of this answer is right. a. 240 b. 239 c. 242 d. 241

5. cwrw238 Group Title

pi rad = 180 degrees 1 .......= 180/pi 12pi/9 rads = 12 * pi * 180 degrees ----------- 9 * pi

6. cwrw238 Group Title

can you pick it up from here?

7. Sariah Group Title

But the teacher said that i have to choose one answer from the nex answers: a. 240 b. 239 c. 242 d. 241

8. cwrw238 Group Title

yup - but you can work it out from the formula i gave you - that is 12 * pi * 180 degrees ----------- 9 * pi can you work this out?

9. cwrw238 Group Title

the pi's cancel out to give 12* 180 ------- 9 9 divides into 180 20 times so this gives 12* 20 = 240 the answer is a. 240