No because a triangles inner angles must equal a whole 180 degrees and an equilateral has to have all equal interior angles and 75+75+75 does not equal 180
No because the 4 interior angles must add up to 360 degrees
105
30
The sum of an angle and its complement is 90 degrees. So the unknown angle must be 90 - 75 = 15 degrees.
It is not a proportion. There needs to be aroubd a 75 degree angle from the ground to the base. If it is too flat the ladder can slip out from underneath you. If it is too steep you can tip back. There is usually an angle at the bottom of the ladder if that is flat on the ground then that should be the safest angle (75 degrees)
A 75 degree angle.
It is an acute angle
Use a protractor and a straight edge to construct a 75 degree angle
15 degrees
It is: 180-75 = 105 degrees
The third angle is 68 degrees which makes it a scalene triangle
180-75=105 degrees
75 degrees
105 degrees
The supplementary angle of 57 degrees is 123 degrees The complementary angle of 75 degrees is 15 degrees So: 123 minus 15 = 108 degrees
A pair of supplementary angles add up to 180 degrees. Therefore, the supplement to a 105 degree angle is equal to 180 - 105 = 75 degrees.
It is a right angle triangle and angle A measures 15 degrees.