Question

The perimeter of a rectangle is 40 cm. Find breadth of length is 15 cm.​

Answer 1

Answer:

10 cm

Step-by-step explanation:

40=2(15+b)

40= 30+b

40-30=b

10=b

10 CM is the correct answer

Answer 2

Answer:

5cm

Step-by-step explanation:

perimter of rectangle = 40cm

length = 15 cm

breadth = ??

We know that,

perimeter of rectangle = 2( length + breadth )

40cm= 2(15+ breadth )

40/2 cm (15+ b)

20cm= (15+b)

breadth = 20-15 = 5cm

breadth = 5cm