Question

How do i calculate sin 120 without a calculator ?

Answer 1

The answer is .580611184212314

Answer 2

no like in ratio from

Answer 3

it's 3 sqrt over 2 but idk how you get that :S

Answer 4

I used a calculator

Answer 5

Firstly find the square root of 3 from your calculator..
can you do this??

Answer 6

sin(180-60) =sin180cos60-cos180sin60
=0-(-1)(3^.5/2) = sqrt(3)/2

Answer 7

Then divide the result by 2 you will get your answer..

Answer 8

in ratio format like how @nishika17 is doing it

Answer 9

using the special triangles

Answer 10

Oh do you want to know how sin120 = root(3)/2 ???

Answer 11

yesss ! i dont really understand how

Answer 12

sin(180-60) =sin180cos60-cos180sin60
=0-(-1)(3^.5/2) = sqrt(3)/2