Right Triangle Trig Check In

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What is the hypotenuse in a right triangle?

Back

The hypotenuse is the longest side of a right triangle, opposite the right angle.

Front

What is the sine function?

Back

The sine function relates the angle of a right triangle to the ratio of the length of the opposite side to the hypotenuse.

Front

What is the cosine function?

Back

The cosine function relates the angle of a right triangle to the ratio of the length of the adjacent side to the hypotenuse.

Front

What is the tangent function?

Back

The tangent function relates the angle of a right triangle to the ratio of the length of the opposite side to the adjacent side.

Front

How do you find the length of a side using the Pythagorean theorem?

Back

Front

What is the formula for finding the area of a right triangle?

Back

Front

If you know two sides of a right triangle, how can you find the third side?

Back

You can use the Pythagorean theorem to find the third side if you know the lengths of the other two sides.

Front

What is the relationship between the angles in a right triangle?

Back

The sum of the angles in any triangle is 180 degrees. In a right triangle, one angle is 90 degrees, so the other two angles must sum to 90 degrees.

Front

What is the opposite side in relation to an angle in a right triangle?

Back

The opposite side is the side that is directly across from the angle in question.