If you have a 30, 60, 90 triangle, evaluate the sin 30∘. (Remember, the sides in a 30, 60, 90 triangle the sides are corresponding to the pattern 1, 2, and √3. Sketch the triangle to find the solution.)

A) 1/2
B) 3/4
C) 5/2
D) 4/2

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.