Question

The perimeter of a rectangle is 30cm, its length is 10m. Find its breadth.​

Answer 1

Answer:

5 cm

Step-by-step explanation:

perimeter of rectangle = 2(a+b)

a and b are sides and p is perimeter

p=30 cm

a=10 cm

b=?

p=2(a+b)

30 cm=2(10+b) cm

30/2 cm=10+b cm

15 cm=10+b cm

b=15-10 cm

b=5 cm

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Answer 2

Answer:

5 cm

Step-by-step explanation:

30=2(10+B)

30/2=10+B

15=10+B

∴B=5cm

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