A spot elevation of 1237 feet is shown on a topographic map. If the contour interval of the map is 20 feet,?

what is the value of the first contour line below the spot elevation?





a.1200 feet.


b. 1217 feet.


c. 1220 feet


d. 1230 feet





thanks!

A spot elevation of 1237 feet is shown on a topographic map. If the contour interval of the map is 20 feet,?
c) 1220
Reply:1220 feet.
Reply:This looks like plagerism did you copy this quwestion out of a mutiple answer question group??? Your guilty guilty guilty! And the answer is.... a. b. c. or d. Or just b. 1217 (cause the contour little lines being said to be at 20 feet means every time you see a new little line printed then the elevation has risen or droped 20ft. I had friends who chose to not go a route i took back to the road because the contour lines were kinda thick on the map. I stuided it very closly though and found the trail only crossed a contour line not more than once or twice every third of a mile. And sure enough it was a rather steep mountain but the trail went along side of it and gradually decended down to the road home. If you want better credits study the plumes JPL %26amp; nasa discovered on one of saturn? moons or something. They are the ice volcano ?? plumes that shoot 3 or 4 miles up or something. I really don't know/remember where it twas.
Reply:1237 minus 20 = b.1217 feet
Reply:If a map has a contour interval of 20 feet, all of its contour lines are exact multiples of 20 feet. Starting at sea level, they would be at 0, 20, 40, 60, ... feet elevation.





The largest multiple of 20 that is less than 1237 is 1220.