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Mathematics 7 Online
OpenStudy (anonymous):

FAN AND MEDAL

OpenStudy (anonymous):

What is the length of the unknown side of the right triangle? 21 29 400 441

OpenStudy (anonymous):

Do you have a picture for me?

OpenStudy (anonymous):

OpenStudy (anonymous):

Thanks

OpenStudy (anonymous):

Does this come with the complete number of all the sides?

OpenStudy (anonymous):

Like the total of them added up?

OpenStudy (anonymous):

idk

OpenStudy (anonymous):

Ok well there's 20+21 which is equal to 41 now if I had the total of all the sides together I'd be able to tell you....because all we know right now is that 20+21=41 and thats all we know, so we need to know the total of all the sides combined wich they should tell you....Hmmmmmm

OpenStudy (anonymous):

inding the missing side of a right triangle is a pretty simple matter if two sides are known. One of the more famous mathematical formulas is a2+b2=c2, which is known as the Pythagorean Theorem. The theorem states that the hypotenuse of a right triangle can be easily calculated from the lengths of the sides. The hypotenuse is the longest side of a right triangle. Right Triangle If you're given the lengths of the two sides it is easy to find the hypotenuse. Just square the sides, add them, and then take the square root. Here's an example: Sample Triangle Since we are given that the two legs of the triangle are 3 and 4, plug those into the Pythagorean equation and solve for the hypotenuse: a2+b2=c2 32+42=c2 9+16=c2 c=5 If you are given the hypotenuse and one of the legs it's going to be slightly more complicated, but only because you have to do some algebra first. Suppose you know that one leg is 5 and the hypotenuse (longest side) is 13. Plug those into the appropriate places in the Pythagorean equation: a2+b2=c2 52+b2=132 25+b2=169 b2=144 b=12 As you can see, it is pretty simple to use the Pythagorean Theorem to find the missing side length of a right triangle. But -- what if it's not a right triangle? If you change that angle in the triangle there can obviously be any number of possibilities for the hypotenuse! Thus, you need more information to solve the problem. You can try using the Law of Sines or the Law of Cosines to determine side lengths in other triangles.

OpenStudy (anonymous):

it don't say anything else

OpenStudy (anonymous):

give me a meda;l plz

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