Download. 1  The octopus can only be found in salt water, but they live in all the oceans. 2  There are about 300 known species of octopus. 3  The body of an octopus looks like a bag.  The octopus has excellent eyesight, but they are 1  deaf. The octopus is considered the most intelligent of all the invertebrates.
1 The price of having a tennis court can range anywhere from $40,000 to $80,000. 2  Since tennis courts usually have the same area specifications, the price for constructing one is only different based on the materials that will be used and the company hired to build it. The price range for their services can fall between $28,000 and $80,000. 2  Another company that can provide tennis court construction is Tennis Court Repairs. 3  Their website shows that the cost of having this type of court constructed can range from $25,000 to $50,000 without lighting.
Tennis is played on a rectangular flat surface, usually of grass, clay or hard material. The dimensions of a tennis court are defined and regulated by the International Tennis Federation (ITF) governing body and are written down in the annual 'Rules of Tennis' document. The court is 78 feet (23.77 metres) long. Its width is 27 feet (8.23 metres) for singles matches and 36 feet (10.97 metres) for doubles matches. The service line is 21 feet (6.40 metres) from the net.