if the triangle has one right angle in it
By using Pythagoras' theorem for a right angle triangle.
right angle!
Not the best way of finding out if a triangle is right angled. But if you can find two if the sides which have gradients which when multiplied together gives -1, then the angle between them is a right-angle. This comes from the fact that if the slope of a line is a/b, then the slope of a perpendicular line is -b/a and the product of (a/b)(-b/a)=-1.
It is the longest side of a right angle triangle.
if the triangle has one right angle in it
The 90 degree angle in a right angle triangle is opposite its hypotenuse.
By using Pythagoras' theorem for a right angle triangle.
It has a 90 degree angle..
right angle!
Not the best way of finding out if a triangle is right angled. But if you can find two if the sides which have gradients which when multiplied together gives -1, then the angle between them is a right-angle. This comes from the fact that if the slope of a line is a/b, then the slope of a perpendicular line is -b/a and the product of (a/b)(-b/a)=-1.
It is the longest side of a right angle triangle.
The height of a triangle alone is not enough information to find the perimeter. You need some angle measures or side lengths.
The sine of an angle in a right triangle is opposite/hypotenuse, where opposite is the only side that is not adjacent to the angle you want to find the sine of, and the hypotenuse is the side opposite the right angle in the triangle. Just find opposite/hypotenuse.
By using trigonometry that is applicable to a right angle triangle.
It is a right angle triangle and its largest angle is 90 degrees
sin, tan and cos can be defined as functions of an angle. But they are not functions of a triangle - whether it is a right angled triangle or not.