Trigonometry Quiz

The longest side of the right triangle is called the hypotenuse.

• True

• False

The Sine function is defined by the ratio of the opposite side of an angle divided by its adjacent side.

• True

• False

The following right triangles have angle measures that are considered special angles: 30 - 60 - 90; 45 - 45 - 90; 60 - 40 - 90.

• True

• False

The angle of elevation is the angle formed by the horizontal line with the line of sight of the observer to the object above.

• True

• False

The Law of Cosines is defined by the equation a2 = b2 + c2 - 2acCos A.

• True

• False

What is the branch of mathematics that studies relationships between the sides and angles of triangles?

• Algebra

• Geometry

• Calculus

• Trigonometry

In the figure at the right, which side is adjacent to ∠θ?

• a

• b

• c

• b & c

Which of the following defines the Tangent function?

• adjacent side/hypotenuse side

• hypotenuse/adjacent side

• opposite side/adjacent side

• opposite side/hypotenuse

What is the reciprocal of Cosine Function?

• Cosecant

• Secant

• Sine

• Tangent

What is the mnemonic device used to easily remember the primary trigonometric ratios?

• Cah-Soh-Toa

• Soh-Cah-Toa

• Cao-Sha-Cho

• Toa--Cao-Sha