There are no numbers on that list that could be the sides of a right triangle. Oh, all right. The following is the answer:
The Right Triangle. Perpendicular lines make a right angle.
3, 5, 5 does not make a right angle triangle but they can make an isosceles triangle Correct. Try 3,4,5. That will be a right triangle. 3x3 plus 4x4 = 5x5
right triangle ( triangles with a right angle)
Yes because they comply with Pythagoras' theorem for a right angle triangle
No.
78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.78 42 are, as far as I can make out, two numbers. They do not make a triangle.
A triangle can have at most one right angle.
Yes because 3, 4 and 5 complies with Pythagoras' theorem for a right angle triangle.
Three numbers may or may not define a right triangle. Also, the answer will depend on whether the three numbers are the lengths of sides or the measures of angles.
There are no numbers on that list that could be the sides of a right triangle. Oh, all right. The following is the answer:
If they are a Pythagorean triple then they will form a right angle triangle
No. (14)2 is not equal to (8)2 + (10)2 .
a quadrilateral
The Right Triangle. Perpendicular lines make a right angle.
3, 5, 5 does not make a right angle triangle but they can make an isosceles triangle Correct. Try 3,4,5. That will be a right triangle. 3x3 plus 4x4 = 5x5
No. There can be no isosceles right angled triangle with all three sides being rational numbers.