Question

if breadth is 12 CM and it's perimeter is 60 CM (rectangle) find its length and area

Answer 1

Perimeter of rectangle = 2(l+b) 

ATQ 

2(l + b) = 60 

2(l + 12) = 60 

2l + 24 = 60 

2l = 60 - 24 

2l = 36 

l = 18 cm 

area = l x b 

area = 12 x 18 

= 216 cm²

Answer 2

Answer:

Perimeter of rectangle = 2(l+b)

ATQ

2(l + b) = 60

2(l + 12) = 60

2l + 24 = 60

2l = 60 - 24

2l = 36

l = 18 cm

area = l x b

area = 12 x 18

= 216 cm²Step-by-step explanation: