NCERT Solutions for Class 6 Mathematics Exercise 10.2

NCERT Answers for Class 6 Maths Chapter 10 
Mensuration Exercise 10.2
Page 216
Ex 10.2 Class 6 Maths Question 1. Find the areas of the following figures by counting square:
Answer
(a) The figure contains only 9 fully filled squares. Hence, the area of this figure will be 9 square units.
(b) The figure contains only 5 fully filled squares. Hence, the area of this figure will be 5 square units.
(c) The figure contains 2 fully filled squares and 4 half filled squares. Hence, the area of this figure will be 4 square units.
(d) The figure contains only 8 fully filled squares. Hence, the area of this figure will be 8 square units.
(e) The figure contains only 10 fully filled squares. Hence, the area of this figure will be 10 square units.
(f) The figure contains only 2 fully filled squares and 4 half filled squares. Hence, the area of this figure will be 4 square units.
(g) The figure contains 4 fully filled squares and 4 4 half filled squares. Hence, the area of this figure will be 6 square units.
(h) The figure contains 5 fully filled squares. Hence, the area of this figure will be 5 square units.
(i) The figure contains 9 fully filled squares. Hence, the area of this figure will be 9 square units.
(j) The figure contains 2 fully filled squares and 4 half filled squares. Hence, the area of this figure will be 4 square units.
(k) The figure contains 4 fully filled squares and 2 half filled squares. Hence, the area of this figure will be 5 square units.
(l) From the given figure, we observe
Covered Area  Number  Area estimate (square units) 
Fully filled squares  2  2 
Half filled squares  –  – 
More than half filled squares  6  6 
Less than half filled squares  6  0 
Therefore total area = 2 + 6
= 8 square units.
(m) From the given figure, we observe
Covered Area  Number  Area estimate (square units) 
Fully filled squares  5  5 
Half filled squares  –  – 
More than half filled squares  9  9 
Less than half filled squares  12  0 
Therefore total area = 5 + 9
= 14 square units
(n) From the given figure, we observe
Covered Area  Number  Area estimate (square units) 
Fully filled squares  8  8 
Half filled squares  –  – 
More than half filled squares  10  10 
Less than half filled squares  9  0 
Therefore total area = 8 + 10 = 18 square units.