Posted by georgetooraw on Tuesday, February 26, 2013 at 9:54pm.
A triangle has side lengths 24, 32, and 42. Is it a right triangle? Explain

geometry  bobpursley, Tuesday, February 26, 2013 at 9:58pm
no. the sides are in a ratio of 3:4:5.03
needs to be 3:4:5

geometry  Jeff, Tuesday, February 26, 2013 at 9:59pm
No...Use c^2=a^2+b^2.
Use a= 24, b= 32 and c= 42 (the longest side).
Take a^2 + b^2 and see if it eqauls c^2
If it does, it is a right angle. If it does not, it is not a right triange.
In this case, it does not, so it is not a right triangle.

geometry  Jeff, Tuesday, February 26, 2013 at 10:08pm
Keep in mind it does not have to be in ratio of 3:4:5 to be a right triangle, it has to make the equation c^2=a^2+b^2 true. Another common right triangle is 5,12,13.
Answer This Question
Related Questions
 Geometry  Please check my answers 1. A triangle has side lengths of 34 in, 20 ...
 Math  If all of the following triangles have the same perimeter, which has the ...
 Geometry Part 2  A triangle has side lengths 10,15,and 7.Is the triangle acute,...
 Math (Geometry)  The perimeter of right triangle ABC is equal to the perimeter ...
 basic geometry  the three verticies of a triangle can be found at the points A(...
 maths  1.how many non congruent right triangles with positive integer leg ...
 geometry  An angle bisector of a triangle divides the opposite side of the ...
 Geometry  Tell if the measures 9,11, and 7 can be side lengths of a triangle. ...
 geometry  The perimeter of right triangle RST is equal to the perimeter of ...
 Geometry  An equilateral triangle has side lengths of 10. If the consecutive ...
More Related Questions