The lengths of the legs of a right triangle are 25 cm and 60 cm.
What is the length of the hypotenuse?
A.
42.5 centimeters
B.
35 centimeters
C.
65 centimeters
D.
9.2 centimeters
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pooja195 (pooja195):
Here we would use the Pythagorean theorem.
\[\huge~\rm~\bf~a^2+b^2=c^2\]
c=hypotenuse
the order of a and b don't really matter
a=25
b=60
\[\huge~\rm~\bf~25^2+60^2=? \]
OpenStudy (johnnewman):
ok
pooja195 (pooja195):
\[\huge~\rm~25 \times 25=? \]
OpenStudy (johnnewman):
625
OpenStudy (kash_thesmartguy):
Then, what is 60*60?
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pooja195 (pooja195):
Good
\[\huge~\rm~\bf~60 \times 60=? \]
OpenStudy (johnnewman):
3600
pooja195 (pooja195):
3600+625=?
OpenStudy (johnnewman):
and i add 625 and 3600
pooja195 (pooja195):
Yes
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OpenStudy (kash_thesmartguy):
Yep, you got your answer!
pooja195 (pooja195):
That's not the answer
OpenStudy (kash_thesmartguy):
Well, yeah, you then got to square root your answer to get the real answer
pooja195 (pooja195):
@Kash_TheSmartGuy it would really help if you slowed down a bit a gave the user time to answer :)
OpenStudy (johnnewman):
65 is the square root
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OpenStudy (kash_thesmartguy):
Ok
pooja195 (pooja195):
c^2=4225
c=65 correct :)
OpenStudy (johnnewman):
sorry i need to slow down a little
pooja195 (pooja195):
Not you i was talking to the other user lol you're fine