Question

If you are given the length of one side of a right triangle and also are given the measure of one additional angle besides the right angle, what method should you use to solve the right triangle? Question 6 options:

Use Pythagorean theorem to find sides, then trigonometric ratios to find angles.

Use trigonometric ratios to find a side, then use Pythagorean theorem to find the other side, then use sum of angles of a triangle add up to 180 to find the missing angle measure.

Use Pythagorean theorem to find the remaining angle measure, then use triangle inequality to find the remaining sides.

Use trig ratios to find the remaining angle, then use Pythagorean theorem to find the remaining side.

Answer 1

Quick Answer: B
Remark
You don't have enough information to use the Pythagorean Theorem as you first step. Pythagoras only works when you have two out of the threes sides known to you. Answers One and Three don't work at all.

Four doesn't fully work. It can be used to find the third angle. That's true enough. The problem is, you still don't have the second side. So the fourth answer is wrong.

The second answer is the only one you can use.

B <<<<<< Answer.