If you know the lengths of two sides then use Pythagoras' theorem to find the third side.
Angle A + Angle B + Angle C = 180 degrees. If one angle equals 90 degrees then it is a right triangle and the lengths of the sides are in a ratio such that A squared plus B squared equals C squared (Pythagorean Theorem)
In a right triangle with the hypotenuse c equals 10 and the angle A equals 50 degrees the angle B equals: 40 degrees.
Angle C = 50 degrees. ------------------------------- A triangle equals 180 degrees. 60.5 + 69.5 = 150 180-150 = 50.
82 degrees (180 degrees in a triangle)
The sum of a triangle equals 180 degrees
55 degrees.
A right angle triangle
The 3rd angle is 30 degrees and so it is an obtuse or a scalene triangle with 3 different side lengths and no right angle.
A triangle with interior angles of 42, 87 and 24 degrees doesn't exist because the angles add up to 153 degrees whereas the interior angles of any triangle always add up to 180 degrees.
It is a scalene triangle as there are no equal angles or lengths. 60 + 70 + 50 = 180 degrees
The angle is 50 degrees.
Is angle C 90 degrees or 80 degrees?