Question

Find the breadth of a rectangle whose length is 12 cm and perimeter is 40 cm? ​

Answer 1

Step-by-step explanation:

2(l+b)=40

l+b=20

12+b=20

b=8cm

Answer 2

$\huge\bold{Answer:-}$

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Given:-

• The length of the rectangle is 12 Cm
• The perimeter of the rectangle is 40Cm.

To Find :-

• The breadth of the Rectangle.

Solution:-

we know ,

The perimeter of a rectangle is

= 2 × ( length + breadth) unit .

so,

ATQ

⟹ 2( l + b ) = 40

⟹ 2( 12 + b ) = 40

⟹ ( 12 + b ) = $\dfrac{40}{2}$

⟹ ( 12 + b ) = 20

⟹ b = 20 - 12

⟹ b = 8

Therefore ,

The breadth of the rectangle is 8 Cm.