How do you find leg length, BC, to the nearest tenth if in a right triangle ABC, the hypotenuse #AB=15# and angle #A=35º#?
We use the sine function since side BC is opposite angle A.
By the definition, Sine function is the ratio of the opposite side to the hypotenuse of a right triangle.
substituting the values
multiply both sides of the equation by 15
and using reflexive property of equality