Question

the area of a rectangle is 460cm² if the length is 15 % more than the breadth what is the breadth of the rectangle​

Answer 1

Answer:

Let the length of the rectangle be b. So, the length of the rectangle will be,

l

=(1+

100

15

)b

=

20

23b

Now, area is equal to product of length and breadth so,

l×b

20

23b

×b

b

2

b

2

b

=460

=460

=

23

20

×460

=400

=20 cm

So, the breadth of the rectangle is equal to 20 cm.

Answer 2

➶ GIVEN ➶

• Area of rectangle = 460 cm²

➶ SOLUTION➶

• Let breadth of rectangle is x
• Length = x + 0.15x = 1.15x

• Area = 460
• ⇛ Length × breadth = 460
• ⇛ (1.15x). x = 460
• ⇛ 1.15 x² = 460
• ⇛ x² = 460/1.15
• ⇛ x² = 400
• ⇛ x = 20 cm

• Now breadth = x = 20 cm
• Length = 1.15x = 1.15 ×20 = 23 cm