12
a right triangle
Is a right angled triangle.
If a triangle has a right angle, it is a right triangle.
Yes a 90- 60-30 triangle for example because there are 180 degrees in a triangle.
Such a triangle would presumably have one right angle, and two acute angles. A right angle has a measure of 90 degrees; an acute angle has a measure of less than 90 degrees. Since both of the other two angles in a right triangle must be acute angles, you'd think at first that every right triangle must be a right acute triangle. But when you go and look up the definition of an "acute triangle", it turns out to be a triangle in which all three angles are acute. So the fact is that there's no such thing as a right acute triangle, because the 90-degree angle in a right triangle is not acute.
is it a right triangle if the measure is 5 7 and 9
9_or_yes">9 or yesA+ = 12
no
a right triangle
No siree
It equals nothing - other than a right angled triangle.
For a right angled triangle, sum of squares of two sides of a triangle equals square of the third side. For example - In triangle ABC, AB2 + BC2 = AC2
The square root of 149 (7 squared plus 10 squared equals 149).
A right triangle. Also an isosceles triangle.
If you mean angles then it is a right angle triangle or an isosceles right angle triangle
If the triangle contains an angle whose measure is equal to 90 degrees or if the sum of the squares of two of the sides equals the square of the third. Essentially, if it has a right angle or if a2 + b2 = c2 where c is the longest side of the triangle and a and b are the other two sides, then the triangle must be a right triangle (in Euclidean geometry, that is)
It can be but need not be.