Question

perimeter=30cm , length=10 find the breath

Answer 1

Answer:5cm

Step-by-step explanation:

The perimeter of rectangle is P=2(LENGTH+BREATH)

here given perimeter is 30cm and length is 10cm

then,

p=2(l+b)

30=2(10+b)

30=20+2b

30-20=2b

10=2b

b=5cm

       

Answer 2

Answer:

Step-by-step explanation:

Perimeter=2 (l+b)

30=2×10+2×x

30=20+2x

10=2x

X=5cm

Breadth=5cm