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pythagorean theorem 7^2 + b^2 = 13^2
b^2 = 169- 49 = b = square root of b^2
what did you get?
I'm sorry, i really don't understand this at all :(
you are not reading
now that you have read the response what is b?
why 169 - 49?
i got 218 :(
what is 169 take away 49 169 minus 49 = 169 - 49 =
so b^2 = 120 to get b take the square root
take the square root?
I hope you see the importance of reading and following directions
so it's 2cm?
i I'm reading the direction. it's just i don't understand
are you mixing questions or something? how on earth do you get 2cm not even an option
where are you stuck?
i got 2cm because of this
that example is showing how to use pythagorean theorem in that example the sides are 3 and 4 so the missing length was the hypotenuse 5 cm in your problem you have the hypotenuse and one leg so you subtract to find the other leg
think of square root as the opposite operation to square just like addition with subtraction and multiplication with division
what was the last bottom part of the picture?
are you understanding now?
a little bit, please don't get mad I'm now learning this
had computer problems guess that was a sign not to post what I wrote bottom line is I don't get mad when a person needs time. I am extremely patient. I don't appreciate people who say " i don't understand" when they are not trying or reading.
square root of 120 yes
to review do you understand pythagorean theorem? do you understand the operations square and square root? do you have any other questions?
sorry I don't know the best sites (I learnt this before the computer age) but khan academy and yah math have helpful videos.
Math is fun. I think the key is to practice problems so you know the steps to follow and how to identify different theorems etc.
you are welcome. all the best with your studies.