No because the 3 angles of a triangle must add up to 180 degrees no less and no more
'a' and 'b' must both be acute, complementary angles.
Any triangle with a 90 degree angle is classified as a right triangle.
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.
Any triangle that has an angle measuring 90 degrees is a right triangle.
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
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.