SOLUTION: Measures of the sides of four triangles are given below.Identify the triangle which is not a right angled triangle 6,8,10 3,4,5 5,12,13 6,7,8

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: Measures of the sides of four triangles are given below.Identify the triangle which is not a right angled triangle 6,8,10 3,4,5 5,12,13 6,7,8      Log On


   

Question 1132300: Measures of the sides of four triangles are given below.Identify the triangle which is not a right angled triangle
6,8,10
3,4,5
5,12,13
6,7,8
Found 2 solutions by MathLover1, Alan3354:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

to find out which is a right angled triangle, use Pythagoras theorem
6,8,10
if
10%5E2=6%5E2%2B8%5E2
100=36%2B64
100=100=> is a right angled triangle
3,4,5
5%5E2=3%5E2%2B4%5E2
25=9%2B16
25=25=> is a right angled triangle


5,12,13
13%5E2=5%5E2%2B12%5E2
169=25%2B144
169=169=> is a right angled triangle

6,7,8
8%5E2=6%5E2%2B7%5E2
64=36%2B49
64%3C%3E85=>is a not right angled triangle



Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Usually called a right triangle.