Question

The length of a rectangle is 7 m greater than its breadth, and its perimeter is
230 m. Find the length and breadth of the rectangle.

Answer 1

Answer:

it's little hard

Step-by-step explanation:

Answer 2

S O L U T I O N :

Let the breadth of a rectangle be r metres & let the length of a rectangle be (r+7) metres respectively.

$\underline{\underline{\tt{According\:to\:the\:question\::}}}$

As we know that formula of the rectangle of perimeter;

$\boxed{\bf{Perimeter = 2(length + breadth)}}$

$\mapsto\tt{2[(r+7) + r ] = 230}$

$\mapsto\tt{2[r+7 + r ] = 230}$

$\mapsto\tt{2[2r + 7]= 230}$

$\mapsto\tt{4r + 14 = 230}$

$\mapsto\tt{4r = 230-14}$

$\mapsto\tt{4r = 216}$

$\mapsto\tt{r = \cancel{216/4}}$

$\mapsto\bf{r = 54\:m}$

Thus;

The breadth of a rectangle = r = 54 m .

The length of a rectangle = (r+7) = (54+7) = 61 m .