Question

in a rectangle length is 3 times the breadth and its perimeter is 40cm make an equation.​

Answer 1

hello mate..

$\huge❅ \mathfrak \red{solution : }❅$

In a rectangle,

Perimeter = 40 cm.

Length = three times the breadth.

Here, we can say that,

As breadth of the rectangle is an unknown quantity, we can represent it by a variable ‘x’.

Then, as per the question

Length is 3 times the breadth; length = 3 × x => 3x.

Formula to find perimeter of rectangle:

$\bold \green{perimeter = 2 \times (l + b).}$

Then,

=> 40 = 2 (3x + x).

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HOPE THIS HELPS YOU..