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Find the area of a rectangle whose length is 12 cm and breadth is 5 cm.
60┬аsq┬аcm
34┬аsq┬аcm
17┬аsq┬аcm
72┬аsq┬аcm
60┬аsq┬аcm
Multiply the length and breadth directly using basic multiplication tables for quick verification.
Length l=12┬аcm, Breadth b=5┬аcm
Area=l├Чb
Multiply the length and breadth directly using basic multiplication tables for quick verification.
Confusing the formula for the area of a rectangle with its perimeter (2(l+b)).
Identify Given Values
Note down the given dimensions of the rectangle: length l=12┬аcm and breadth b=5┬аcm.
l=12┬аcm,b=5┬аcm
Apply Area Formula
Use the standard formula for the area of a rectangle, which is the product of its length and breadth.
Area=l├Чb
Calculate the Area
Substitute the given values into the formula to compute the result: 12┬аcm├Ч5┬аcm=60┬аsq┬аcm.
Area=12├Ч5=60┬аsq┬аcm
A is correct because the product of the length 12┬аcm and breadth 5┬аcm is 60┬аsq┬аcm.
Understanding fundamental 2D shapes helps in solving complex 3D mensuration problems involving total surface area and volume.
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