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Mathematics 8 Online
OpenStudy (anonymous):

Find the length of the unknown side. Round your answer to the nearest tenth. Image of a right triangle with a leg labeled 8, hypotenuse labeled 14, and other leg unknown. 14.0 13.0 12.5 11.5

OpenStudy (haichi):

11.5

OpenStudy (er.mohd.amir):

by Pythagoras theorem hypotenuse2=base2+height2

OpenStudy (anonymous):

|dw:1432093227995:dw|

OpenStudy (er.mohd.amir):

14*14=8*8+side*side

OpenStudy (anonymous):

Can you explain how you got 11.5?

OpenStudy (haichi):

14^2-8^2=132

OpenStudy (er.mohd.amir):

196-64=side2

OpenStudy (xapproachesinfinity):

unknown leg=root(14^2-8^2) use calculator to find the decimal number

OpenStudy (haichi):

\[\sqrt{132}\]

OpenStudy (haichi):

11.48

OpenStudy (er.mohd.amir):

side2=132 take squareroot give side

OpenStudy (haichi):

\[14^2-8^2=132\]

OpenStudy (anonymous):

So it would be 11.5?

OpenStudy (haichi):

\[\sqrt{132}=11.48\]

OpenStudy (haichi):

yes

OpenStudy (anonymous):

I have four more question can I ask them on this same thread?

OpenStudy (haichi):

if u fan and medal me sure

OpenStudy (anonymous):

The hypotenuse of a right triangle is 50 millimeters long. One leg of the right triangle is 30 millimeters long. What is the length of the other leg? 20 millimeters 30 millimeters 40 millimeters 60 millimeters

OpenStudy (haichi):

\[50^2-30^2=1600 \]

OpenStudy (haichi):

\[\sqrt{1600}\]

OpenStudy (haichi):

=40

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