Question

area of rectangle is 80 square cm and length is 10 cm find its breadth and perimeter​

Answer 1

Answer:

Breadth of the rectangle = 8cm

perimeter of the rectangle = 36 cm

Step-by-step explanation:

Given,

area of the rectangle = 80 sqcm

length = 10 cm

consider breadth as 'x'

area of the rectangle = (l×b)= 80 sqcm

(10)(b) = 80

b = 80/10

therefore, b = 8cm

perimeter of rectangle = 2 (l+b)

=2 (10+8)

=2 (18)

=36

Answer 2

Answer :

• Breadth of rectangle is 8cm
• Perimeter of rectangle is 36cm

Given :

• Area of rectangle is 80cm²
• Length of rectangle is 10cm

To find :

• Breadth of rectangle
• Perimeter of rectangle

Solution :

First we need to find the breadth of rectangle :

• Let the breadth of rectangle be x
• Length of rectangle is 10cm
• Area of rectangle is 80cm²

We know that

• Area of rectangle = l × b

Where,

• l is length of rectangle
• b is breadth of rectangle

↦ Area of rectangle = length × breadth

↦ 80 = 10 × b

↦ b = 80/10

↦ b = 8cm

Hence, Breadth of rectangle is 8cm.

Now , Finding the perimeter of rectangle :

Given,

• Length of rectangle is 10cm
• Breadth of rectangle is 8cm

We know that

• Perimeter of rectangle = 2(l + b)

Where,

• l is length of rectangle
• b is breadth of rectangle

↦ Perimeter of rectangle = 2(l + b)

↦ Perimeter of rectangle = 2(10 + 8)

↦ Perimeter of rectangle = 2(18)

↦ Perimeter of rectangle = 36cm

Perimeter of rectangle is 36cm.

Hence,

• Breadth of rectangle is 8cm
• Perimeter of rectangle is 36cm

Verification :

↦ Area of rectangle = length × breadth

↦ 80 = 10 × 8

↦ 80 = 80

Hence , Verified