Activity 1: The Six Trigonometric Ratios

What do you call the branch of mathematics that deals with the relations between the sides and angles of a triangle?

• Algebra

• Geometry

• Trigonometry

• Calculus

In a right triangle, what do you call the opposite side of the right triangle?

• Hypotenuse

• Leg

• Longer Leg

• Opposite leg

The trigonometric ratio of adjacent leg and the hypotenuse of a right triangle.

• Cosine

• Tangent

• Sine

• Cotengent

The six trigonometric ratios are only applicable to what kind of triangle?

• Acute Angle

• Obtuse angle

• Right triangle

• Equilateral triangle

What is the mnemonic devise used to easily remember the primary trigonometric ratio?

• SOH-CAH-TOA

• SHO-CHA -TOA

• SOH-CAH-TAO

• SHO-CAH-TOA

In a right triagle, the two acute angles are__________.

• Supplementary

• Complementary

• Equal

• Not Equal

1. With respect to the given angle, what is the ratio of the hypotenuse to the adjacent side?

• sine

• cosine

• tangent

• cotangent

2.    Given the figure, which of the following statements is correct?

3. Given the figure, what is the value of x?

5. In triangle PQR, what is the length of PQ?

• 1

• 2

• 3

• 4