Question

A rectangle. has a perimeter of 50cm and width
10cm Find the length.
we know thats
Deoimeter = 50 cm
width= 10 cm find the length?
​

Answer 1

Answer:

perimeter of rectangle = 2× width + 2 × length

50 = 2× 10 + 2× L

50 = 20 + 2L

50-20 = 2L

30 = 2L

30 ÷ 2 = length

15 = length

therefore length = 15 cm

Answer 2

Answer:

The length of the rectangle = 15 cm

Step-by-step explanation:

Given:

• Perimeter of a rectangle = 50 cm
• Breadth of a rectangle = 10 cm

To find:

• The length of a rectangle.

Solution:

As here we are provided with the perimeter and the breadth of a rectangle, by using the formula of perimeter of rectangle, we will find the required length of a rectangle. Putting the values in the formula and then doing the required calculations.

Let's find out...

✰ Perimeter of a rectangle = 2(l + b)

Where,

l is the length of a rectangle.

b is the breadth of a rectangle.

Putting the values in the formula, we have:

• 50 = 2(l + 10)
• 50/2 = l + 10
• 25 = l + 10
• l = 25 - 10
• l = 15 cm

∴ The length of a rectangle = 15 cm

Verification:

• Perimeter of a rectangle = 2(15 + 10)
• Perimeter of a rectangle = 2 × 25
• Perimeter of a rectangle = 50 cm

Hence Verified!!

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