Question

The answer is (2) 92m², but I want explanation.

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Answer 1

Step-by-step explanation:

considering the vertical rectangle

length is 20cm and breadth is 2cm

so area will be 40

in the horizontal rectangle

length is 30cm and breadth is 2cm

so area will be 60

but they a square in common with side 2cm

so area of square is 4

total area of both the rectangles will be

40+60=100

but as the square is repeating twice we need to consider it only once

so Subtracting the area of square once

100-4=96

so the area of the shaded region is 96

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