If l = 12 cm and m = 5 cm, what is the length of n?

Question

calculusxy · Answer

Is there an equation that is attached to this?

anonymous · Answer

its a triangle

anonymous · Answer

If l = 12 cm and m = 5 cm, what is the length of n?

calculusxy · Answer

You have to use the Pythagorean Theorem. Follow what I do, and if you have any questions be sure to tell me. 

a^2+b^2=c^2
This is the formula. But don't get worried by the variables, you can always switch a and b for l and m. Also c can be switched for n. 

So not to get this confusing, I will substitute the letterings for you, 
l^2+m^2=n^2

Lets now substitute the variables with the numbers. 
 12^2+5^2=c^2
169=c^2

Remember that n equals to the square root of 169.
n= √169
n=13

calculusxy · Answer

@kthy1347 Do you get it?