Question

A rectangular display board depicting ‘’BE DISCIPLINED’’ is kept
near the main gate of the school. The perimeter of a rectangular
board is 58m. Its length is 2 m more than twice its breadth
i)If the breadth of the rectangle is x cm
Perimeter in terms of x is

a) 2(2+x) =58
b) 2+3x =58
c) 2(2+3x) =58
d) x =58

Answer 1

Answer:

ANSWER

Let the breadth of the rectangle is b cm.

So, the length of the rectangle is 2b cm.

We know that the perimeter of rectangle is

=2(l+b)

Since, perimeter of rectangle is 120 cm.

Therefore,

6b=120

b=20 cm

And l=40 cm

So, the area of rectangle is

=20×40=800 cm2

Hence, the length is 40 cm, breadth is 20 cm and area is 800 cm2.

Step-by-step explanation:

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