Question

The length of a rectangle is 10 cm more than it's breadth .if the perimeter of the rectangle is 100cm .then what is area​

Answer 1

STEP-BY-STEP EXPLANATION

According to the question:

Length =10cm (more than breadth)

Perimeter = 30 cm

To Find:

Calculate the length and breadth

Step-by-step explanation:

Step 1:

Perimeter of the rectangle =2(l+b)

Step 2:

Step 3:

5cm=b

10cm=1

Step 4:

Result:

Length is 5 cm.

Breadth is 10 cm.

Answer 2

Step-by-step explanation:

Let the breadth of rectangle be x

so length of rectangle is = 10 + x

Perimeter of rectangle is = 100cm

perimeter of rectangle = 2( l + b )

100 = 2 ( x + 10 + x )

100/2= 2x + 10

50 - 10 = 2x

40/ 2 =x

20 = x

breadth = 20 cm

length = 30 cm

Area of rectangle = l × b

= 20 × 30

= 600 cm^2

Therefore the area of rectangle is 600 cm^2 .