Find the areas of the following figures by counting square:
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(a) |
(b) |
(c) |
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(d) |
(e) |
(f) |
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(g) |
(h) |
(i) |
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(j) |
(k) |
(l) |
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(m) |
(n) |
(a) The figure contains 9 fully filled squares only. Therefore, the area of
this figure will be 9 square units.
(b) The figure contains 5 fully filled squares only. Therefore, the area of this figure will be 5 square units.
(c) The figure contains 2 fully filled squares and 4 half-filled squares. Therefore, the area of this figure will be 4 square units.
(d) The figure contains 8 fully filled squares only. Therefore, the area of this figure will be 8 square units.
(e) The figure contains 10 fully filled squares only. Therefore, the area of this figure will be 10 square units.
(f) The figure contains 2 fully filled squares and 4 half-filled squares. Therefore, the area of this figure will be 4 square units.
(g) The figure contains 4 fully filled squares and 4 half-filled squares. Therefore, the area of this figure will be 6 square units.
(h) The figure contains 5 fully filled squares only. Therefore, the area of this figure will be 5 square units.
(i) The figure contains 9 fully filled squares only. Therefore, the area of this figure will be 9 square units.
(j) The figure contains 2 fully filled squares and 4 half-filled squares. Therefore, the area of this figure will be 4 square units.
(k) The figure contains 4 fully filled squares and 2 half-filled squares. Therefore, the area of this figure will be 5 square units.
(l) From the given figure, it can be observed that,
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Covered Area
Number
Area estimate (sq units)
Fully filled squares
2
2
Half filled squares
−
−
More than half - filled squares
6
6
Less than half - filled squares
6
0
Total area = 2 + 6 = 8 square units
(m) From the given figure, it can be observed that,
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Covered Area
Number
Area estimate (sq units)
Fully filled squares
5
5
Half-filled squares
−
−
More than half-filled squares
9
9
Less than half-filled squares
12
0
Total area = 5 + 9 = 14 square units
(n) From the given figure, it can be observed that,
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Covered Area
Number
Area estimate (sq units)
Fully filled squares
8
8
Half-filled squares
−
−
More than half-filled squares
10
10
Less than half-filled squares
9
0
Total area = 8 + 10 = 18 square units