Question

The length of the rectangle plot of
land is 15m more than its breadth
find the breadth of the plot. of
perimeter is im. 70m​

Answer 1

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The length of a rectangular plot of land is 15m more than its breadth. Find the breadth of the plot if perimeter is 70m.

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Let breadth = x

Then, length = 15+x

Perimeter of rectangular plot = 70 m

Perimeter = 2(l+b)

2(15+x+x) = 70 m

30+4x = 70

4x = 70-30

x = 40/4

Breadth = 10 m

Answer 2

Concept: Rectangle is a four sided polygon which has same length and same breadth which makes right angle with each other.

Perimeter is the sum of the boundary line of the shape.

Perimeter of the rectangle is the double of the summation of length and breadth of the rectangle.

Given: length of the rectangle plot of land is 15 m more than its breadth.

Find: Calculate the breadth of the rectangular plot.

Solution: Let the breadth of the rectangle is b.

Length of the rectangle is 15+b m

Perimeter of the rectangle = 2(length+breadth)= 70 m

                                            = 2(15+b+b)=70

                                            = 15+2b=35

                                            = 2b=20

                                            = b=10 m

Final answer: The breadth of the rectangular plot is 10 m.

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