Angles of Elevation and Depression Practice

Front

What is the line of sight in a triangle?

Back

The line of sight is the straight line from the observer's eye to the object being observed.

Front

How do you find the measure of an angle of elevation or depression?

Back

Use trigonometric ratios (sine, cosine, tangent) based on the opposite and adjacent sides of the triangle.

Front

What is the formula for the sine of an angle?

Back

Sine = Opposite Leg / Hypotenuse.

Front

What is the formula for the cosine of an angle?

Back

Cosine = Adjacent Leg / Hypotenuse.

Front

What is the formula for the tangent of an angle?

Back

Tangent = Opposite Leg / Adjacent Leg.

Front

If the angle of elevation is 55.2 degrees, what is the corresponding angle of depression?

Back

The angle of elevation and the angle of depression are equal when measured from the same horizontal line.

Front

What is the relationship between angles of elevation and depression?

Back

Angles of elevation and depression are complementary angles when measured from a horizontal line.

Front

How do you solve for a missing angle in a right triangle?

Back

Use the sum of angles in a triangle (180 degrees) and the known angles to find the missing angle.

Front

What is the significance of the hypotenuse in a right triangle?

Back

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

Front

What is an angle of elevation?

Back

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