MEDAL
What is the length, in units, of the hypotenuse of a right triangle if each of the two legs is 3 units?
Square root of 18 units
Square root of 27 units
3 units
6 units
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OpenStudy (milo123):
3^2 x 3^2 = 81
OpenStudy (milo123):
@mathmate @Mehek14
OpenStudy (jango_in_dtown):
By Pythagorus theorem , the answer is sqrt( 3^2+3^2)= sqrt 18
OpenStudy (milo123):
oops i accidentally did multiplication
OpenStudy (jango_in_dtown):
its ok. :)
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OpenStudy (andrewishere):
Ok so lets draw this
OpenStudy (andrewishere):
So use the pythagorean formula \[a^2 +b^2 + c^2\] for the following
|dw:1478535699457:dw|
OpenStudy (andrewishere):
a = 3
b = 3
c = ?
OpenStudy (andrewishere):
Plug into the pythagorean Theorem:
\[(3)^2+(3)^2 = c^2\]
OpenStudy (andrewishere):
equals
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OpenStudy (andrewishere):
\[9+9 = c^2\]
OpenStudy (andrewishere):
equals
OpenStudy (andrewishere):
\[18 = c^2\]
OpenStudy (andrewishere):
To isolate c, find the square root of both sides
OpenStudy (andrewishere):
\[\sqrt{18}= \sqrt{c^2}\]
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OpenStudy (andrewishere):
So...
OpenStudy (andrewishere):
\[c = \sqrt{18}\]
or simplified
\[c = 3\sqrt{2}\]
OpenStudy (milo123):
thanks
OpenStudy (andrewishere):
Sorry it was so fast, but I am in school and I have to go to my next class.
I hoped this helped.
Any more questions, just message me and I will get to it ASAP