Question

If P = perimeter of a rectangle, l= its length and b = its breadth; find b, if P=
48cm and l= 14cm.

Answer 1

Answer:

breadth is 10cm

Step-by-step explanation:

Given,

perimeter = 48cm

length =14cm

To find

breadth = ?

Solution

perimeter = 2(l+b)

48cm =2(14+b)

24 -14 =b

b=10cm

breadth of rectangle is 10cm

Answer 2

Question :

If P = perimeter of a rectangle, l= its length and b = its breadth; find b, if P=

48cm and l= 14cm.

Answer :

$\sf\pink{Given:}$

• Perimeter of the rectangle is 48 cm .

• Length of the rectangle is 14 cm.

$\sf\pink{To\:find:}$

• Breadth of the rectangle = ?

Explanation :

Perimeter of rectangle = 2( l + b )

$\longrightarrow\bf{48 = 2\times ( 14 + b)}$

$\longrightarrow\bf{48 = 28 + 2b}$

$\longrightarrow\bf{2b = 48 - 28}$

$\longrightarrow\bf{2b = 20}$

$\longrightarrow\bf{b = \dfrac{20}{2}}$

$\longrightarrow\bf{b = 10}$

• Therefore breadth is 10 cm .

@MissOxford