Class 6 - Mathematics : Mensuration
Exercise : 10.2
Top Block 1
NCERT Solutions Class 6 Mathematics Mensuration Ex 10.2
Question: 1.Find the areas of the following figures by counting squares:
Answer :
(a) Number of filled square = 9
∴ Area covered by squares = 9 x 1 = 9 sq. units
(b) Number of filled squares = 5
∴ Area covered by filled squares = 5 x 1 = 5 sq. units
(c) Number of full filled squares = 2
Number of half filled squares = 4
∴ Area covered by full filled squares = 2 x 1 = 2 sq. units
And Area covered by half filled squares = x = 2 sq. units
∴ Total area = 2 + 2 = 4 sq. units
(d) Number of filled squares = 8
∴ Area covered by filled squares = 8 x 1 = 8 sq. units
(e) Number of filled squares = 10
∴ Area covered by filled squares = 10 x 1 = 10 sq. units
(f) Number of full filled squares = 2
Number of half filled squares = 4
∴ Area covered by full filled squares = 2 x 1 = 2 sq. units
And Area covered by half filled squares = x = 2 sq. units
∴ Total area = 2 + 2 = 4 sq. units
(g)Number of full filled squares = 4
Number of half filled squares = 4
∴ Area covered by full filled squares = 4 x 1 = 4 sq. units
And Area covered by half filled squares = x = 2 sq. units
∴ Total area = 4 + 2 = 6 sq. units
Mddle block 1
∴ Area covered by filled squares = 5 x 1 = 5 sq. units
(i)Number of filled squares = 9
∴ Area covered by filled squares = 9 x 1 = 9 sq. units
(j)Number of full filled squares = 2
Number of half filled squares = 4
∴ Area covered by full filled squares = 2 x 1 = 2 sq. units
And Area covered by half filled squares = x = 2 sq. units
∴Total area = 2 + 2 = 4 sq. units
(k)Number of full filled squares = 4
Number of half filled squares = 2
∴ Area covered by full filled squares = 4 x 1 = 4 sq. units
And Area covered by half filled squares = x = 1 sq. units
∴ Total area = 4 + 1 = 5 sq. units
(l)Number of full filled squares = 3
Number of half filled squares = 10
∴ Area covered by full filled squares = 3 x 1 = 3 sq. units
And Area covered by half filled squares = x = 5 sq. units
∴ Total area = 3 + 5 = 8 sq. units
(m)Number of full filled squares = 7
Number of half filled squares = 14
∴ Area covered by full filled squares = 7 x 1 = 7 sq. units
And Area covered by half filled squares = x = 7 sq. units
∴ Total area = 7 + 7 = 14 sq. units
(n)Number of full filled squares = 10
Number of half filled squares = 16
∴Area covered by full filled squares = 10 x 1 = 10 sq. units
And
Area covered by half filled squares = x = 8 sq. units
∴ Total area = 10 + 8 = 18 sq. units