Question

find :-) the following​

Answer 1

Answer:

I guess l is length, b is breadth and p is perimeter

i) p=2l+2b..

38=2l+2(7)

38= 2l+14

38-14=2l

24=2l

24/2=l

12cm = length

ii) when p is 3.2m means 320cm and l is 100 cm

320= 2l + 2b

320= 2(100)+2b

320= 200+2b

320-200= 2b

120=2b

120/2=b

60cm =breadth

iii) when l is 2m means 200 cm and b is 75 cm

p = 2l + 2b

= 2(200)+2(75)

= 400+ 150

= 550cm or 5.5 mis perimeter

if it was helpful , kindly express.