Question

The perimeter of a rectangle is 30 cm.If the length of the rectangle is 10 cm.Then its breadth will be *
a) 5cm
b) 25cm
c) 6cm
d) 35cm​

Answer 1

Answer:

p = 2( l + b )

30 = 2 ( 10 + b )

30/2 = ( 10 + b)

15 - 10 = b

b = 5 cm

Answer 2

Answer:

The perimeter of a rectangle is 30 cm.If the length of the rectangle is 10 cm.Then its breadth will be *

a) 5cm

b) 25cm

c) 6cm

d) 35cm

option a) 5

Step-by-step explanation:

perimeter of rectangle = 30

length = 10

breadth = b

perimeter = 2(l+b)

30 = 2(10 + b)

30 = 20 + 2b

2b = 30-20

2b = 10

b = 10/2

b = 5

•°• , breadth of the rectangle is 5cm.

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