Question

If p denotes perimeter of a rectangle, l denotes it's length and b denotes it's breadth, find= 1) l, if p=38cm and b=7cm​

Answer 1

Answer:

12

Step-by-step explanation:

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Answer 2

Given :-

• Perimeter of Rectangle = 38cm
• Breadth of Rectangle = 7cm

To Find :-

• Length of the Rectangle

Solution :-

❏ As we know that, Perimeter of Rectangle is given by [ Perimeter of Rectangle = 2 ( Length + Breadth ]

Putting the Values :

➞ Perimeter of Rectangle = 2 (L + B )

➞ 38 = 2 (Length + 7 )

➞ 38 / 2 = Length + 7

➞ 19 = Length + 7

➞ 19 - 7 = Length

➞ 12cm = Length

Thus Length of Rectangle = 12cm

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Verification :

⟾ Perimeter of Rectangle = 2 (L + B )

⟾ Perimeter of Rectangle = 2 (12 + 7)

⟾ Perimeter of Rectangle = 2 × 19

⟾ 38 = 38

Hence Verified

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★ Additional Info :

Formulas Related to Rectangle:

• Perimeter of Rectangle = 2( l + b)
• Area = Length × Breadth
• Length = Area / Breadth
• Breadth = Area / Length
• Diagonal = √(l)² + (b)²

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