Review - Right Triangle Trig.

Front

What is the formula for finding the hypotenuse in a right triangle?

Back

a² + b² = c², where c is the hypotenuse.

Front

If a ladder makes a 62° angle with the ground and is 14 feet long, how do you find the height it reaches on a wall?

Back

Use the sine function: height = 14 * sin(62°).

Front

What is the sine of an angle in a right triangle?

Back

The ratio of the length of the opposite side to the length of the hypotenuse.

Front

What is the cosine of an angle in a right triangle?

Back

The ratio of the length of the adjacent side to the length of the hypotenuse.

Front

What is the tangent of an angle in a right triangle?

Back

The ratio of the length of the opposite side to the length of the adjacent side.

Front

How do you calculate the height of a ladder leaning against a wall?

Back

Height = Ladder length * sin(angle with ground).

Front

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

Back

The sum of the angles in a right triangle is always 180°, with one angle being 90°.

Front

What is the Pythagorean theorem?

Back

In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Front

If one leg of a right triangle is 5 and the other leg is 12, what is the length of the hypotenuse?

Back

c = √(5² + 12²) = √169 = 13.

Front

What is the formula to find the length of a side in a right triangle using the tangent function?

Back

tan(angle) = opposite/adjacent.