Question

(b) The area of a rectangle is 180 cm square and its length is 15 cm. Find its breadth
and perimeter.
​

Answer 1

Answer:

Step-by-step explanation:

Area of a rectangle = length x breadth

       180 = 15 x b  

  b = 180 / 15

 b = 12 cm

Perimeter of a rectangle is given by

     P = 2(l + b)

    P = 2(15 + 12)

  P = 2 x 27

P =  54 sq cm

Answer 2

Answer:

area =l×b = 180

=15×b=180

b=180/15 ( by transposing method )

breath = 12 cm

now it is very easy to find perimeter

={2×l+b }

=2×15+12

=54cm

perimeter = 54 cm