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E:\Working\Focus_Learning\Math_Genius-6\Open_Files\14_Unit_Test_4\Unit Test -4
\ 04-Nov-2024 Bharat Arora Proof-8 Reader’s Sign _______________________ Date __________

Unit test – 4

A. Choose the correct option in Questions 1 to 10.

1. The number of lines of symmetry in an equilateral triangle is

(a) 1 (b) 2 (c) 3 (d) 4

2. If the diameter of a circle is 16 cm, then its radius is
(a) 32 cm (b) 16 cm (c) 8 cm (d) 4 cm

3. The number of line of symmetry in a divider is
(a) 0 (b) 1 (c) 2 (d) 4

4. Which of the following is not the name of the adjoining figure?
L M
(a) LMPT (b) LTPM

(c) PTML (d) MLTP T P

5. The instrument used to draw a straight line is
(a) protractor (b) divider (c) compass (d) ruler

6. The angle through which an object turns during rotation is called
(a) centre of rotation (b) angle of rotation

(c) angle of symmetry (d) none of these
7. Which of the following alphabets shows both reflection and rotational symmetry?

(a) A (b) L (c) H (d) U
8. Which of the following letters has more than one line of symmetry?

(a) B (b) X (c) Z (d) T
Directions. (For Qs 9–10): In the following questions, a statement of Assertion (A) is followed
by a statement of Reason (R). Choose the correct option.
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of

Assertion (A).
(b) Both Assertion (A) and Reason (R) are true but Reason (R) is not a correct explanation
of Assertion (A).

(c) Assertion (A) is true but Reason (R) is false.

(d) Assertion (A) is false but Reason (R) is true.
9. Assertion (A): We can construct three square of sides 8 cm from a rectangle of sides
6 cm × 18 cm.

Reason (R): Square is a close figure, whose all the sides are of equal length.
10. Assertion (A): A regular pentagon has 5 lines of symmetry.

Reason (R): A regular polygon has as many lines of symmetry as the number of its sides.

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