Question

find the length of the rectangle whose length is 70 cm and perimeter is 200 CM​

Answer 1

Answer:

length= 70cm

perimeter= 200cm

perimeter of rectangle= 2(l+b)

200 =2(70 + breadth)

100= 70 + breadth

breadth= 30 cm

plz mark as brainliest

Answer 2

you mean find the breadth

Ok so!

Let's see

Length= 70 cm

Let the breadth be x.

Perimeter=200 cm

Also, Perimeter= 2(l+b)

Therefore,

200= 2(70+x)

200= 140 +2x

2x= 200-140

2x= 60

x= 60/2

x= 30

Therefore, breadth of the rectangle is 30 cm.

For verification,

2(70+30) = 2×100=200 (LHS)

200 (RHS)

LHS=RHS

Hence verified.

Hope it helps.....

Plz mark it as brainliest