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

- The angle of elevation is the angle formed between the horizontal line and the line of __________. a) depression b) elevation c) inclination
- The angle of depression is the angle formed between the horizontal line and the line of __________. a) elevation b) depression c) inclination
- In a right-angled triangle, the trigonometric ratio that relates the opposite side and the hypotenuse is __________. a) sine b) cosine c) tangent
- In a right-angled triangle, the trigonometric ratio that relates the adjacent side and the hypotenuse is __________. a) sine b) cosine c) tangent
- The trigonometric ratio that relates the opposite side and the adjacent side in a right-angled triangle is __________. a) sine b) cosine c) tangent
- If the angle of elevation is 40 degrees, the angle of depression is __________ degrees. a) 40 b) 50 c) 90
- The angle of depression is always measured __________ the horizontal line. a) above b) below c) parallel to
- In a right-angled triangle, the hypotenuse is always the __________ side. a) longest b) shortest c) middle
- 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
- 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

- 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)

- What is the sum of the interior angles in a triangle?
a) 90° b) 180° c) 360°

- 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)

- What is the measure of a right angle?
a) 45° b) 90° c) 180°

- 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°)

- 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)

- If an angle measures 120°, what type of angle is it?
a) Acute angle b) Right angle c) Obtuse angle

- 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)

- What is the measure of a straight angle?
a) 45° b) 90° c) 180°

- 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)