The Perimeter of rectangle is 40 c.m. The length is 4 cm more than its breadth.Then find the length and breadth ? [ Remember the fact that ‘Half the Perimeter is the sum of length and breadth’]
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Answer:
L= 12; B= 8;
Step-by-step explanation:
Peri = 40;
let breadth = x;
Then length = x+4;
Peri = 2(length + breadth);
Peri = 2(x+4+x);
Peri = 2(2x+4);
Peri = 4x + 8;
40 = 4x + 8;
40 - 8 = 4x;
32 = 4x;
x = breadth = 8;
length = breadth + 4 = 8 = 4 = 12;
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The Perimeter of rectangle is 40 cm . The length is 4 cm more than its breadth.Then find the length and breadth ?
Length of rectangle = 12 cm
Breadth of rectangle = 8 cm
The length of a rectangle is 4 cm more than its breadth.
The perimeter of the rectangle is 40 cm.
The length and breadth of the rectangle .
Let breadth of rectangle = x cm
Then length of rectangle = x + 4 cm
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