Page 65 - Math_Genius_V1.0_C6_Flipbook

E:\Working\Focus_Learning\Math_Genius-6\Open_Files\02_Chapter_2\Chapter_2
\ 07-Nov-2024 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

Chapter assessment
A. Choose the correct option.

1. The number of lines passing through five points such that no three of them are collinear is
(a) 10 (b) 5 (c) 20 (d) 8
2. In the figure, ∠XYZ cannot be written as
X
(a) ∠Y
(b) ∠ZXY
(c) ∠ZYX

(d) ∠XYP Y
P Z
3. The number of angles in the figure given alongside is
(a) 3
(b) 4

(c) 5
(d) 6
4. In which of the following figures, two lines are perpendicular to each other?

p r
l
(a) (b) q (c) s (d)
m n

p
5. The measures of the two angles between the hour and minute hands of a clock at 10 o’clock are
(a) 60°, 300° (b) 270°, 90° (c) 75°, 285° (d) 30°, 330°
6. The number of obtuse angles in the given figure is

(a) 2
(b) 3
45° 65°
(c) 4 20°
30°
(d) 5
7. If the sum of two angles is greater than 180°, then which of the following is not possible for the two
angles?
(a) One obtuse angle and one acute angle (b) One reflex angle and one acute angle
(c) Two obtuse angles (d) Two right angles.
8. Two straws are placed as shown below forming angles ‘1’ and ‘2’. If straw A is moved so that the
value of ∠2 triples. How does the value of ∠1 change?
(a) The value of ∠1 triples Straw A

(b) The value of ∠1 decreases by 2∠2
(c) The value of ∠1 increases by 2∠2 1
2 Straw B
1
(d) The value of ∠1 becomes times of its original
3

63