That it must be a right angle triangle because the 3rd angle must be 90 degrees
The longest side is twice as long as the shortest side.
That it has a 90 degree angle and two equal 45 degree angles
false
An obtuse triangle has 1 obtuse angle and 2 acute angles which add up to 180 degrees.
false
The longest side is twice as long as the shortest side.
false
true
true
That it has a 90 degree angle and two equal 45 degree angles
false
No. One isn't enough. It must have two of them.
There has to be a right angle..... go lakeside hunter answered this
false
true
The statement "m angle 1 + m angle 2 + m angle 3 = 180 degrees" is true if angles 1, 2, and 3 are the three interior angles of a triangle. In any triangle, the sum of the interior angles is always 180 degrees. If the angles are labeled as m angle 1, m angle 2, and m angle 3, then their measures must collectively equal 180 degrees regardless of their individual measures.
True