Question

Ind the length of the rectangle whose breadth is 4m and perimeter is 28 m.

Answer 1

Answer:

perimeter =2(l+b)

28=2(l+4)

14=l+4

10=l

theirfore length =10m

Answer 2

Answer:

10m

Step-by-step explanation:

b=4m. P=28m

we know that perimeter ,

2(l+b) = 28m

then,

giving the value to 'b',

2(l+4)=28

l+4=28÷2=14

ie, l+4=14

therefore ,

l=14-4=10.