Question

The floor of a room is 6m long and 4.2m wide it has a border of 20cm laid on it with green marbles . the rest of the area is covered with white marbles . find the area covered with green and white marbles seperately .​

Answer 1

The area of rectangle with green and white marbles is 3.92 m^2

Step-by-step explanation:

• Area of the  bigger rectangle = 6 × 4.2 = 25.2 m^2
• Length  of the  smaller rectangle = 6−2(0.2)m=5.6 m
• Breadth of the smaller rectangle = 4.2 − 2(0.2) = 3.8 m
• Area of the rectangle with white marble = 5.6 × 3.8 =21.28 m^2

So, area of the rectangle with green marble=Area of the  bigger rectangle− area of the rectangle with white marble = 25.2 − 21.28 = 3.92 m^2

Hence the area of rectangle with green and white marbles is 3.92 m^2

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