Direction: Find the area of each shaded region Assume that all angles that appear to be right
angles are right angles.
1.
3 cm
4 cm
2.
6m
2 m
8 m
3.
3 ft
3 ft
6 ft
4 1t
6 ft
10 ft
16 cm
12cm
4.
tutm
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1
Answer:
right angle at 12 cm appear to no
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4
Solution :-
(1)
→ Area of shaded region = Area of ∆ + Area of square = (1/2) * b * h + (side)² = (1/2) * 4 * 3 + (4)² = 6 + 16 = 22 cm² .
(2)
→ Area of shaded region = Area of ∆ - Area of circle = (1/2) * b * h - πr² = (1/2) * 8 * 6 - 3.14 * 2 * 2 = 24 - 12.56 = 11.44 m²
(3)
→ Area of shaded region = Area of large rectangle - Area of small rectangle = 6 * 10 - 3 * 4 = 60 - 12 = 48 ft²
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