Review of Triangle Trigonometry Tools

To find the missing side length in the diagram, use the Pythagorean Theorem.

• True

• False

Which expression is correct for "y"?

• y = tan^–1(31/23)

• y = sin^–1(31/23)

• y = cos^–1(31/23)

Which is the best strategy to use for finding the length of the missing side?

• sine

• cosine

• tangent

• Pythagorean Theorem

What is the most efficient way to find "x"?

• Inverse sine

• Inverse cosine

• Inverse tangent

• Pythagorean Theorem

What is the most efficient way to find "y"?

• Inverse sine

• Inverse cosine

• Inverse tangent

• Pythagorean Theorem

What is the sine of angle C?

• 7/24

• 7/25

• 24/25

• 25/24

What is the cosine of θ?

• 15/8

• 15/17

• 17/15

• 8/15

What is the tangent of angle C?

• 7/25

• 25/7

• 7/24

• 24/7

What is the cosecant of angle C?

• 25/24

• 25/7

• 7/24

• 24/7

What is the secant of θ?

• 8/15

• 17/15

• 17/8

• 15/17