Question

Which of these is equivalent to 450°?

A) 5Ï€ rad

B) π 5 rad

C) 5Ï€/ 2 rad

D) 2Ï€/ 5 rad

Answer 1

You need to know that 2\(\pi\) radians is equal to 360 degrees

Answer 2

So 450 degrees is equal to what?

Answer 3

How would you set it up? The top one or the bottom one?

Remember that we want the degrees to cancel out so that way we're left with it in radians

Answer 4

The bottom one?

Answer 5

yes

Answer 6

You got it!!!

The degrees cancel out leaving the radians in the numerator

Answer 7

So can you simplify it?

Answer 8

Yes?

Answer 9

What do you get then?

Answer 10

C

Answer 11

That's correct!

Answer 12

Thank you! : )

Answer 13

You're welcome!