Geometry - Test Lsns 13.1 - 13.3 Trig Ratios & Special Rt Triang

Front

What is the definition of a right triangle?

Back

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

Front

What are the three sides of a right triangle called?

Back

The three sides are called the hypotenuse (the longest side opposite the right angle), and the two legs (the sides that form the right angle).

Front

What is the Pythagorean theorem?

Back

Front

How do you find the sine of an angle in a right triangle?

Back

Front

How do you find the cosine of an angle in a right triangle?

Back

Front

How do you find the tangent of an angle in a right triangle?

Back

Front

What is the angle of elevation?

Back

The angle of elevation is the angle formed by a horizontal line and the line of sight to an object above the horizontal line.

Front

How do you calculate the height of an object using trigonometric ratios?

Back

Front

What is the special right triangle ratio for a 45-45-90 triangle?

Back

In a 45-45-90 triangle, the lengths of the legs are equal, and the hypotenuse is @@ ext{leg} imes ad{2}@@.

Front

What is the special right triangle ratio for a 30-60-90 triangle?

Back

In a 30-60-90 triangle, the lengths of the sides are in the ratio 1 : @@ ad{3}@@ : 2, where 1 is the length of the side opposite the 30-degree angle.