Understanding Elementary Shapes-Solutions Ex-5.3

CBSE Class –VI Mathematics
NCERT Solutions
Chapter 5 Understanding Elementary Shapes (Ex. 5.3)

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Question 1.Match the following:

(i) Straight angle	(a) less than one-fourth a revolution
(ii) Right angle	(b) more than half a revolution
(iii) Acute angle	(c) half of a revolution
(iv) Obtuse angle	(d) one-fourth a revolution
(v) Reflex angle	(e) between 14$\frac{1}{4}$ and 12$\frac{1}{2}$ of a revolution
	(f) one complete revolution

Answer:   (i) →$\to$ (c)    (ii) →$\to$ (d)    (iii) →$\to$ (a)   (iv) →$\to$ (e)   (v) →$\to$ (b)

Question 2. Classify each one of the following angles as right, straight, acute, obtuse or reflex:


Answer: (a) Acute angle (b) Obtuse angle  (c) Right angle

(d) Reflex angle  (e) Straight angle  (f) Acute angle