Find the value of sin210°

How do you find this?

Find the value using the definition of sine.

sine (210 degrees) = opp/hyp

Substitute the values into the definition.

sin (210 degrees) = - 1/2 / 1

Simplify the result.

Multiply the numerator by the reciprocal of the denominator.

-1/2.1

Multiply - 1 by 1 to get - 1

-1/2