# Angles of Elevation and Depression; Trigonometry Ratio Third Term JSS 2 Mathematic

1. The angle of elevation is the angle formed between the horizontal line and the line of __________. a) depression b) elevation c) inclination
2. The angle of depression is the angle formed between the horizontal line and the line of __________. a) elevation b) depression c) inclination
3. In a right-angled triangle, the trigonometric ratio that relates the opposite side and the hypotenuse is __________. a) sine b) cosine c) tangent
4. In a right-angled triangle, the trigonometric ratio that relates the adjacent side and the hypotenuse is __________. a) sine b) cosine c) tangent
5. The trigonometric ratio that relates the opposite side and the adjacent side in a right-angled triangle is __________. a) sine b) cosine c) tangent
6. If the angle of elevation is 40 degrees, the angle of depression is __________ degrees. a) 40 b) 50 c) 90
7. The angle of depression is always measured __________ the horizontal line. a) above b) below c) parallel to
8. In a right-angled triangle, the hypotenuse is always the __________ side. a) longest b) shortest c) middle
9. If the angle of elevation is 60 degrees, the trigonometric ratio relating the opposite side and the hypotenuse is __________. a) sine 60 b) cosine 60 c) tangent 60
10. The angle of elevation and the angle of depression are always __________ angles. a) complementary b) supplementary c) congruent

Please select the correct option (a, b, or c) for each question.

Part B

1. In the figure below, what is the measure of angle A?

a) 45° b) 90° c) 135°

(Figure: Angle A is formed by two intersecting lines, with the angle pointing upwards)

2. What is the sum of the interior angles in a triangle?

a) 90° b) 180° c) 360°

3. In the figure below, which angle is complementary to angle P?

a) Angle Q b) Angle R c) Angle S

(Figure: Angle P and angle Q are adjacent angles that form a straight line)

4. What is the measure of a right angle?

a) 45° b) 90° c) 180°

5. In the figure below, what type of angle is angle X?

a) Acute angle b) Right angle c) Obtuse angle

(Figure: Angle X measures less than 90°)

6. Which of the following lines is parallel to line L in the figure below?

a) Line M b) Line N c) Line O

(Figure: Line L is a straight line with three other lines intersecting it)

7. If an angle measures 120°, what type of angle is it?

a) Acute angle b) Right angle c) Obtuse angle

8. In the figure below, what is the value of x?

a) 40° b) 50° c) 60°

(Figure: Two intersecting lines form four angles, one of which is labeled x)

9. What is the measure of a straight angle?

a) 45° b) 90° c) 180°

10. In the figure below, what is the sum of angles A, B, and C?

a) 90° b) 180° c) 270°

(Figure: Three angles A, B, and C form a triangle)