The perimeter of a rectangle is 354 km. Its side lengths are 81 km, 81 km, and 96 km. The fourth side length is given as "f" km. What is the value of f?

96km

Step-by-step explanation:

Perimeter of a rectangle

Here already the length ( sides ) are provided.

That is 81 km

Now the question is what is the breadth?

In simple words as one of the breadth is 96km so the other one will also be 96 km because 2(l+b) = the perimeter of a rectangle so as there is mentioned 2(l+b) the breadth will be the same i.e 96 km

So your answer is 96 km

Hope it helps you!!

#IndianMurgaツ

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

i think the correct option is the second option.