Page 58 - Ganit Kaushal

Miscellaneous Exercise 2.5

There are four options (Q. 1 to Q. 10) out of which only one is correct. Choose the correct option.

1. Which of the following has one end point?

(a) A line segment (b) A ray (c) A line (d) None of these
2. The number of lines that can be drawn through two given points is
(a) only one (b) two (c) three (d) infinitely many

3. ∠ABC can also be written as
(a) ∠ACB (b) ∠BAC (c) ∠CAB (d) ∠CBA

4. The sizes of the two given angles can be more accurately compared using a/an
(a) observation (b) protractor (c) compass (d) ruler

5. One straight angle is equal to
(a) one right angle (b) two right angles (c) three right angles (d) four right angles
6. Which of the following are the models of perpendicular lines?

(a) Lines of a railway track (b) Line segments forming the letter L
(c) Two edges of a triangle (d) The letter V

7. Open any two adjacent fingers of your hand. What kind of angle do you get?
(a) Acute (b) Reflex (c) Obtuse (d) Straight
8. If the sum of two angles is an obtuse angle, then which of the following is not possible?

(a) One right angle and one acute angle (b) Two acute angles
(c) One obtuse angle and one acute angle (d) Two right angles

9. If the sum of two angles is greater than 180 degrees, then which of the following is not possible?
(a) One obtuse and one acute angle (b) Two right angles
(c) Two obtuse angles (d) One reflex and one acute angle

10. Which of the following is not a type of angle?
(a) Isosceles (b) Acute (c) Reflex (d) Straight

11. Fill in the blanks.
(a) The adjacent edges of a rectangular tabletop are examples of _____ lines.
(b) The measure of an acute angle is _____ 90 degrees.

(c) The measure of an obtuse angle is_____ 90 degrees.
(d) The measure of a reflex angle is _____ 180 degrees.

(e) The measure of one complete revolution is _____ 360 degrees.
12. State whether the following statements are True or False.
(a) The measure of an acute angle < 90°.

(b) The measure of an obtuse angle < 90°.

56 Mathematics-6