Which expression converts 45° to radians?

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Question:

Which expression converts 45° to radians? a. 45 degrees times.
b. 180 degrees.
c. 180 degrees/pi.
d. pi/180 degrees.

Answer:

The expression that converts 45 degrees to radians is .

The following information should be considered:

  • The full circle that contains 360 degrees is 2 pi radians.
  • If we divided it by 2 so it comes 180 degrees.

i.e.

pi radians = 180 degrees

Now divide 180 degrees to both the sides.

So

It does not change the value of the number. It just remains the same.

Therefore, the fourth option is correct.

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