S1 Unit 5: Remediation Horton

Front

What is the definition of tangent in trigonometry?

Back

Tangent (tan) is a trigonometric function defined as the ratio of the opposite side to the adjacent side in a right triangle.

Front

How do you find the tangent of an angle θ?

Back

Tangent of θ = Opposite side / Adjacent side.

Front

What is the cosine function used for in trigonometry?

Back

Cosine (cos) is used to find the ratio of the adjacent side to the hypotenuse in a right triangle.

Front

What is the formula to find the length of a side in a right triangle using the Pythagorean theorem?

Back

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

Front

How do you calculate the angle of elevation using a ramp?

Back

Angle = arctan(opposite/adjacent) where opposite is the height and adjacent is the base length.

Front

What is the sine function used for in trigonometry?

Back

Sine (sin) is used to find the ratio of the opposite side to the hypotenuse in a right triangle.

Front

If the length of the hypotenuse is 14 feet and the base is 10 feet, how do you find the angle?

Back

Use the formula: Angle = arccos(base/hypotenuse).

Front

What is the relationship between sine, cosine, and tangent?

Back

tan(θ) = sin(θ) / cos(θ).

Front

How do you round a number to one decimal place?

Back

Look at the second decimal place; if it's 5 or more, round up the first decimal place.

Front

What is the definition of a right triangle?

Back

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