The degrees inside a triangle _always_ add up to 180. Do you need proof?
That's correct! On the surface of a sphere, the sum of the angles of a triangle can be less than 180 degrees or more than 180 degrees depending on the size of the triangle and the curvature of the sphere. If the triangle is small enough compared to the size of the sphere, the sum will be approximately 180 degrees, but this is not always the case.
The total sum of angles of a triangle is 180, so only one angle of a triangle can be 90 ( making it a right angled triangle).However the sum of two angles of a triangle can be equal to 90, once again making it a right angled triangle.it is possible that two angle can be equal to 180-The acute angles of a right triangle are complementary.SUPPOSE ABC IS A TRIANGLE, where C = 90, thenA+B+90 = 180,A+B = 180-90or A+B = 90,or A = 90-Bso it's possible.
Read percy Jackson and the sea of monsters. Or the answer is THE SEA OF MONSTERS. In other words THE BERMUDA TRIANGLE. That's what mortals call it.
That depends upon the lengths of the sides. If the three side lengths are A, B and C, then the three angles are given by:- # a = cos-1( (B2 + C2 - A2) / (2BC) ) # b = cos-1( (A2 + C2 - B2) / (2AC) ) # c = cos-1( (A2 + B2 - C2) / (2AB) )
That happens at half-moon, when the Moon is at the right-angle of a right-angled triangle. The acute angle of the triangle is at the Sun and it is only 0.147 degrees on average. At half-moon you can look at the Moon, and the Sun is approximately 90 degrees to the right or the left, depending on whether the Moon is waxing or waning.
180 degrees in a triangle.
It has 180 degrees, but one angle of the triangle has to be 90 degrees
A right angles triangle, as one of the angles in the triangle is 90 degrees.
A right angled scalene triangle
An obtuse triangle
The sum of inner degrees of a triangle is 180 degrees.
A right-angle triangle
No. An acute triangle only has angles less than 90 degrees. A triangle with a 130 degree angle is obtuse.
In total, a triangle has 180 degrees.
There are 180 degrees in every triangle.
There are 180 degrees in a triangle. Next question?
45 degrees is an angle, not a triangle.A triangle containing an angle of 45 degrees can be any kind of triangle except an equilateral triangle.