A rectangular carpet of size 12m × 6m has a designed border of width 0.5 m. What is the area of the designed border (in m2)?
A rectangular carpet of size 12m × 6m has a designed border of width 0.5 m. What is the area of the designed border (in m2)? Correct Answer 17
Given
Size of carpet = 12m × 6m
Width of border = 0.5m
Formula used
Area of rectangle = length × breadth
Calculation
Length of carpet without border = 12 - (0.5 × 2) = 11 m
Breadth of carpet without border = 6 - (0.5 × 2) = 5 m
Area of outer boundary with border = 12 × 6 = 72 m2
Area of inner boundary without border = 11 × 5 = 55 m2
Hence, area of designed border = 72 - 55 = 17 m2
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Feb 20, 2025