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Mathematics 20 Online
OpenStudy (anonymous):

help

OpenStudy (anonymous):

The length of the hypotenuse of a right triangle is 7 centimeters and the length of one side is 4 centimeters. What is the exact length of the third side? square root of thirty-three centimeters square root of fifty-three centimeters square root of sixty-five centimeters square root of eleven centimeters

OpenStudy (ikram002p):

what do u think ?

OpenStudy (anonymous):

i worked it out twice and my answer is not one of the choices

OpenStudy (ikram002p):

( hypotenuse)^2=(side 1 )^2 + (side 2) ^2

OpenStudy (anonymous):

what i got is 15

OpenStudy (anonymous):

oh wow i was using the wrong formula

OpenStudy (ikram002p):

yeah :D nw check again

OpenStudy (ikram002p):

15 is wrong cuz hypotenuse should be the longest side

OpenStudy (anonymous):

ye so i would set it up ^2=49+16

OpenStudy (anonymous):

65

OpenStudy (anonymous):

thank you

OpenStudy (ikram002p):

nope , its wrong again

OpenStudy (ikram002p):

it shoule be 49-16=sqrt 33

OpenStudy (anonymous):

??

OpenStudy (anonymous):

oh you have to subtract but u put add on the formula

OpenStudy (ikram002p):

( hypotenuse)^2=(side 1 )^2 + (side 2) ^2 7^2=4^2+(side 2) ^2

OpenStudy (anonymous):

i dont get it:(

OpenStudy (ikram002p):

so (side 2) ^2 = 7^2-4^2

OpenStudy (anonymous):

oh

OpenStudy (anonymous):

33^2

OpenStudy (ikram002p):

does it make sense to u nw ?

OpenStudy (anonymous):

yes

OpenStudy (ikram002p):

(side 2) ^2 =33 side 2= sqrt 33

OpenStudy (anonymous):

thanks

OpenStudy (ikram002p):

np :)

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