Triangle A B C. Angle C is 90 degrees. Hypotenuse A B is 29, adjacent side A C is 21, opposite side C B is 20. For the triangle above, find sin A. a. 0.724 c. 50° b. 49° d. 0.69 Please select the best answer from the choices provided A B C D

D. 0.69

Step-by-step explanation:

You can use SOHCAHTOA to find the right trigonometric identity to use:

Sine = opposite / hypotenuse

Cosine = adjacent / hypotenuse

Tangent = opposite / adjacent

The opposite side of angle A is side BC, which is 20 units long.

The hypotenuse is AB, which is 29 units long.

Opposite / hypotenuse = 20 / 29, which equals 0.689.

The correct choice is D.

answer: it's upside down and i can't read it

step-by-step explanation: