Evaluate the expression: Given y=arccos( 1 2 ), when 0 < y < π , find sin y Rubric: One (5) points will be awarded for s

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Evaluate the expression:
Given y=arccos( 1 2 ), when 0 < y < π , find sin y
Rubric:
One (5) points will be awarded for selecting the correct alternative.
One (1) point will be awarded for correctly drawing the triangle.
One (1) point will be awarded for finding all dimensions of the triangle with the Pythagorean Theorem.
One (1) point will be awarded for expressing the correlation between the function and its inverse. (Ex. y = arcsin ( π 2 ) = y sin ( π 2 )
One (1) point will be awarded for naming the trigonometric ratio used. (Ex. sine ∅ = opposite/hypotenuse).
One (1) point will be awarded for giving the correct correct answer in your calculations.