Question

If a and b are length and breadth of a rectangle and it's perimeter is 20 then which of the following is true ?

Answer 1

Answer:

Perimeter of rectangle =2(l+b)

Here length =l and breadth =b

If the length and breadth of a rectangle are doubled.

then length =2l and breadth =2b

∴ perimeter of new rectangle would be 2(2l+2b)=4(l+b)=2.2(l+b)

∴ if the length and breadth of a rectangle are doubled then its perimeter is also doubled.

Option B is correct.

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Answer 2

Answer:

1) A And B Are Of Same Length = 5 cm

2) A Rectangle Is A Square

Step-by-step explanation:

20 ÷ 4 = 5