The 4 cities(A, B,C&D) are to be connected by roads. The budget allows 22 km of road to be build. How can it be done? In the given figure ABCD is a square with each side 8km.

By constructing two diagonal roads.

Step-by-step explanation:

The only feasible solution is the construction of two diagonal roads between each pair of cities. The total length is:

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

439400

step-by-step explanation:

130^2 = 16900

16900*26 = 439400