im working on this problem and i can't find the answer for it. This is the problem.. IS THIS A ACUTE, RIGHT OR OBTUSE TRIANGLE?? IT HAS THE MEASURES OF 15 10 15.. i know you have to use a^2+b^2=C^2 but doesn't C has to be greater than the others.. but in this case there is two # that are the same.. can u help me please!!!
2007-01-09 13:35:27 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
What is the length of the longest side? 15
BUT- There are TWO sides of length 15
There no way this is gonna be a right angler
It's almost an euilateral triangle (15,15,15) but one side is slightly shorter.
So- it's acute.
2007-01-09 13:46:10 · answer #1 · answered by Alan 6 · 0⤊ 0⤋
The formula you gave is for a right angle triangle so you have rightly deduced that it doesn't apply. What do you call a triangle that has two sides the same? And does it have angles that are acute (less than 90 degrees) or obtuse (greater than 90 degrees)? Good luck.
2007-01-09 21:42:21 · answer #2 · answered by St N 7 · 0⤊ 0⤋
It's acute, because if it was right or obtuse, c would be larger than a+b divided by two. 15+15/2=15, and 15>10, so it's acute.
2007-01-09 21:41:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋