Question

The perimeter of rectangle is 13 cm and its width is 2 3/4 Find ita lenght​

Answer 1

Answer:

3 3/4.

Step-by-step explanation:

Perimeter of the rectangle is 13 cm. Width of the rectangle is 2 3/4cm. Perimeter of the rectangle=2(l+b). Add the length and breadth and then double it you get the perimeter. Or double the length and double the breadth and add them up you get the perimeter. Now we have breadth and the perimeter. Double the breadth and subtract it from the perimeter you get the doubled length. Divide this doubled length with 2, you get length of the rectangle.

Doubling the breadth=2 (2 3/4) = 2(11/4)=11/2

Subtract this doubled breadth from perimeter, we get doubled length.

Doubled length= 13–11/2 = 26/2 -11/2 = 15/2

Now half of 15/2 is the length of the rectangle. =(15/2)/2 = 15/4 = 3 3/4.

Answer 2

Answer:

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