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A math quesiton On pythogaroeam theorum?

)A square flower garden is being designed for the community park. The diagonal distance from one corner to another is to be 15 feet. What is the length of each side of the square? Round the answer to the nearest tenth of a foot. 10.6 feet 7.5 feet 12.8 feet 21.2 feet

Public Comments

1. 10.6 for sure
2. This is pythagorean theorem: the sum of the squares of the legs equal the square of the hypotenuse. This applies to right triangles. Basically, if you square the two shorter sides (the ones that make up the right angle) and add the products together, they will equal the square of the third side. Ok, so the hypotenuse is 15 ft. 15 squared is 225. Since all the sides of a square are equal, both legs are the same length. So the length of one leg squared then multiplied by 2 will equal 225. So first, divide 225 by 2. You get 112.5. Now find the square root. I don't know how to do the math to find a square root, so honestly I just used a square root calculator online. The answer is 10.606601717798213. Rounded to the nearest tenth, the answer is A. I hope this helped, good luck!
3. one side is 9 and one side is 12 9*9=81 12*12=144 144+81=225 15*15=225 therfore a^+b^2=c^2
4. c^2 = a^2 + b^2 (15 ft)^2 = a^2 + b^2 a = b 225 ft = 2a^2 112.5 ft = a^2 a = length = 10.60660172 ft So the first one is correct