Right Triangle Trigonometry: Finding Sides

What is the first step when given a right triangle with an angle and two sides?

• Calculate the hypotenuse

• Label the sides as opposite, adjacent, and hypotenuse

• Find the sine of the angle

• Draw a circle around the triangle

Tags

CCSS.HSG.SRT.C.6

In Example 1, which trigonometric function is used to find the missing side?

• Cosine

• Tangent

• Sine

• Secant

Tags

CCSS.HSG.SRT.C.6

What is the value of x when using the tangent function with an angle of 58 degrees and an adjacent side of 10.2?

• 17.4

• 16.6

• 16.3

• 15.6

Tags

CCSS.HSG.SRT.C.8

In Example 2, which trigonometric function is used to find the missing side?

• Cosecant

• Tangent

• Cosine

• Sine

Tags

CCSS.HSG.SRT.C.6

What is the value of x when using the sine function with an angle of 34 degrees and a hypotenuse of 8?

• 4.5

• 5.0

• 4.7

• 4.2

Tags

CCSS.HSG.SRT.C.8

In Example 3, which trigonometric function is used to find the missing side?

• Sine

• Cotangent

• Cosine

• Tangent

Tags

CCSS.HSG.SRT.C.6

What is the value of x when using the cosine function with an angle of 65 degrees and an adjacent side of 13?

• 30.9

• 30.8

• 30.7

• 30.6

Tags

CCSS.HSG.SRT.C.8

In Example 4, which trigonometric function is used to find the missing side?

• Sine

• Cosine

• Tangent

• Secant

Tags

CCSS.HSG.SRT.C.6

What is the value of x when using the sine function with an angle of 23 degrees and an opposite side of 9.5?

• 8.5

• 8.7

• 8.6

• 8.8

Tags

CCSS.HSG.SRT.C.8

In Example 5, which trigonometric function is used to find the hypotenuse?

• Cosecant

• Tangent

• Cosine

• Sine

Tags

CCSS.HSG.SRT.C.6