A rectangular piece of paper has a length of 14cm and a breadth of 12cm. A Square piece of paper of perimeter 24cm is cut off from it. Find the area of the piece of paper left.
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36
Area of rectangular piece of paper=14cm×12cm=168cm^2.
Perimeter of a square piece of paper =24=4×side of the square=>side of the square =6cm. Area of the square piece of paper =6cm×6cm=36cm^2.So area of left piece of paper=Area of rectangle-Area of square=168cm^2-36cm^2=132cm^2.
Perimeter of a square piece of paper =24=4×side of the square=>side of the square =6cm. Area of the square piece of paper =6cm×6cm=36cm^2.So area of left piece of paper=Area of rectangle-Area of square=168cm^2-36cm^2=132cm^2.
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area of rectangle = 2 (14+12)
=2×26=52cm^2
perimeter of square =4×a
24=4×a
6=a
area of square=a×a
=6×6=36cm^2
area of piece of paper left=52-36
=16cm^2
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=2×26=52cm^2
perimeter of square =4×a
24=4×a
6=a
area of square=a×a
=6×6=36cm^2
area of piece of paper left=52-36
=16cm^2
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