If you're talking about adjective, like in parts of speech, then the word 'right' is the adjective, describing the noun 'triangle'.
Chat with our AI personalities
if the triangle has one right angle in it
If it has no right angles, it is not a right triangle and therefore you cannot name a hypotenuse of that triangle. Which implies you cannot find that side's measure.
It is the longest side of a right angle triangle.
If a triangle is an isosceles triangle as well as being a right-angled triangle, the size of the two angles (that are not right angles) are 45 degrees.
By using Pythagoras' theorem for a right angle triangle.