NCERT Solutions For Class 6 Maths Understanding Elementary Shapes Ex 5.3

NCERT Solutions For Class 6 Maths Chapter 5 Understanding Elementary Shapes Ex 5.3

Exercise 5.3

Question 1.
Match the following:
(i) Straight angle (a) Less than one-fourth of 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 of a revolution.
(v) Reflex angle (e) Between $\frac { 1 }{ 4 }$ and $\frac { 1 }{ 2 }$ of a revolution.
– (f) One complete revolution.

Solution:
(i) Straight angle ↔ (c) Half of a revolution.
(ii) Right angle ↔ (d) One-fourth of a revolution.
(iii) Acute angle ↔ (a) Less than one-fourth of a revolution.
(iv) Obtuse angle ↔ (e) Between $\frac { 1 }{ 4 }$ and $\frac { 1 }{ 2 }$ of a revolution.
(v) Reflex angle ↔ (f) One complete revolution, right, acute, obtuse or reflex.

Question 2.
Classify each one of the following angles

Solution:
(a) Acute angle
(b) Obtuse angle
(c) Right angle
(d) Reflex angle
(e) Straight angle
(f) Acute angle