Question

How to convert 0.52 rad into pi form?

Answer 1

the answer given is pi/6.but ive got no idea how to convert it.

Answer 2

pi/6
It's a good idea to remember the approximations of the basic operations.

45 degrees x (pi/180)
pi/4 x 180/pi = 45

Deg --> Rad = pi/180
Rad --> Rad = 180/pi

Answer 3

but the decimal is in radians.i have no idea how it became pi/6.

Answer 4

pi/6 = 0.52
3.14/6 = 0.52

It's good to memorise some of them.
Eg:
pi/2 = 1.57
pi/3 = 1.047
pi/4 = 0.785
pi/6 = 0.52
They arn't hard. Just remember per is approx = 3.14

Answer 5

oh so you just did memory work?no formulas involved?

Answer 6

I told you;
Deg --> Rad = x(pi/180)
Rad --> Rad = x(180/pi)

Eg:
45 x (pi/180) = 0.785 = pi/4
pi/4 x (180/pi) = 45

Answer 7

Oh ok.i think i got it.thanks for the help :)

Answer 8

My pleasure :)