Trigonometry Review

Which of the following symbol called "theta" in the letter of the Greek alphabet?

• α

• β

• φ

• θ

What leg is considered the hypotenuse of a right-triangle?

• any side

• the side opposite the right angle

• the side opposite the shortest leg

• the side opposite the smallest angle

What is the ratio of the tangent?

• tan θ=opposite/hypotenuse

• tan θ=opposite/adjacent

• tan θ=adjacent/opposite

• tan θ=adjacent/hypotenuse

If a triangle has sides 6, 8, 10. What is the ratio of sin θ, where the opposite side is 6?

• 3/5

• 4/5

• 3/4

• 2/3

In a given triangle, find the ratio in fraction of Cos Z.

• 4/5

• 3/5

• 3/4

• 5/3

If a right triangle has a hypotenuse of 11 cm and an adjacent side of 4 cm, what is the measure of angle θ?

• 36º

• 45º

• 69º

• 78º

In a right triangle, if the hypotenuse is 13 cm and the opposite side is 7 cm, what is the value of θ?

• 60º

• 30º

• 24º

• 33º

Calculate the value of tan θ = 0.6494.

• 47º

• 33º

• 81º

• 68º

In △ABC, ∠A=30∘, and the hypotenuse is 10 units. Find the length of the side opposite ∠A.

• 8 units

• 6 units

• 5 units

• 7 units

If angle A in a right triangle is 50°, what is the tangent of this angle?

• 0.09

• 0.77

• 0.64

• 1.19