Area of an Equilateral Triangle

[CynicalSkeptic]

Gotcha. I forgot that my method would be dividing the base side in half, so it would be 2.5 instead of 5. And, of course, you're right about the hypotenuse. I knew that part was wrong, but thought it may have been the mistaken notion represented by the test question.

That's not a hypotenuse that I calculated. We know the hypotenuse is 5. We have to calculate the height.

 

[CynicalSkeptic]

Well the teacher who administered the test said they knew about the error. I didn't get a good explanation why they asked a question with no correct answer in the choices given. She was "tickled" that a parent was involved enough to question the test. Sorta sad that I was the only one.

So the whole thing was a test to see if any parents give a **** about their children's education?

 

[sir drinks-a-lot]

That's not a hypotenuse that I calculated. We know the hypotenuse is 5. We have to calculate the height.

You're right again.

And believe it or not, I've got a degree in math!

 

[TjW]

You're right again.

And believe it or not, I've got a degree in math!

At least you're living up to your user name.

 

[sir drinks-a-lot]

At least you're living up to your user name.

I only stopped by this thread because I heard they were serving Chianti a few posts back...

 

[mijopaalmc]

Hit "Submit Reply" instead of "Preview Post".

 

[psionl0]

Less than 4ml of chianti isn't going to have much effect on anyone.

3,375 ml = 3.375 L which is a lot more than 4 mL.

 

[mijopaalmc]

3,375 ml = 3.375 L which is a lot more than 4 mL.

3.375 L = 3,375 m³ which is even more than 4 mL. (This could go on for ever.)

 

[psionl0]

3.375 L = 3,375 cm³ which is even more than 4 mL. (This could go on for ever.)

ftfy.

BTW I think that brodski was interpreting the comma as a decimal point (but that didn't stop me from being a smart alec).

 

[mijopaalmc]

ftfy.

BTW I think that brodski was interpreting the comma as a decimal point (but that didn't stop me from being a smart alec).

And I was was reinterpreting the the comma as a decimal (vice versa...whatever). The math was correct; the notation was not.


ETA: Errrr....I seem to be having some problems with the non-SI prefixes.

 

[brodski]

3,375 ml = 3.375 L which is a lot more than 4 mL.

only if you use a . rather than a , to indicate a decimal and use a , rather than a space to separate groups of three digits.

 

[psionl0]

only if you use a . rather than a , to indicate a decimal and use a , rather than a space to separate groups of three digits.

That's what you would do if you were doing it the proper way.

 

[mijopaalmc]

That's what you would do if you were doing it the proper way.

No the proper way is to use s.cientific·No^tation.

 

[psionl0]

No the proper way is to use s.cientific·No^tation.

Not s,cie nti fic · No^tation