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B
15 cm²
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C
16 cm²
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D
24 cm²
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Solution
The correct option is A 25 cm² If we look at the figure and divide it into known figures we get, ABDO - Square; BCD - Isosceles Triangle; AOE - Right angle Triangle
Area of ABCDE = area(ABDO) + area(△BCD) + area(△AOE)
Lets find the area of individual figures and add. area(ABDO) = Side2=42=16cm2 area(△AOE) = 12×height×base = 12×4×3=6cm2 area(△BCD) = 12×height×base = 12×1.5×4=3cm2
Area of ABCDE = area(ABDO) + area(△BCD) + area(△AOE) = 16 + 6 + 3 = 25 cm²