The angles could work out as: 1st angle = 90 degrees, 2nd angle = 30 degrees and 3rd angle = 60 degrees because the 3 angles add up to 180 degrees
Let's assume the measure of the first angle is x degrees. The second angle is one-third as large as the first, so its measure is (1/3) * x = x/3 degrees. The third angle is two-thirds as large as the first, so its measure is (2/3) * x = 2x/3 degrees. Therefore, the measures of the angles in the triangle are x degrees, x/3 degrees, and 2x/3 degrees.
The third angle is (128 degrees) minus (the second angle).
It is a right angle triangle and the 3rd angle will measure 30 degrees
The third angle measures 85⁰ (20 + 75 + 85 = 180) consequently, the triangle is an acute angled scalene triangle
It is a right angle triangle providing that the 3rd angle is 30 degrees.
It is 90-28 = 62 degrees
Let the second angle of the triangle be A. Then angle 1 = 2A : and angle 3 = 3A - 12 The internal angles of a triangle total 180° therefore :- 2A + A + (3A - 12) = 180 6A - 12 = 180 : 6A = 192 : A = 32 The angles measure 64° , 32° and 84° .
54 degrees
Any triangle with a 90 degree angle is classified as a right triangle.
The third angle is (128 degrees) minus (the second angle).
It is a right angle triangle and the 3rd angle will measure 30 degrees
Obtuse triangle
A triangle with the third angle that measures 30 degrees.This triangle is not isosceles nor equilateral but has one obtuse angle.
right triangle
Any triangle that has an angle measuring 90 degrees is a right triangle.
It is a right angle triangle and its 3rd angle is 70 degrees.
acute-angled triangle
It is a right angle triangle and the 3rd angle will measure 30 degrees