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Has an isosceles triangle have an obtuse angle?
Not necessarily. The two equal angles in an isosceles triangle must both be acute angles. If they were right angles or obtuse angles then a triangle could not be formed. If the two equal angles are less than 45° each then the third angle is an obtuse angle. If they are both 45° then the third angle is a right angle and if they are both greater than 45° then the third angle is an acute angle.
How do you determine the third angle of a triangle if 2 angles are known?
There are 180 degrees in a triangle. So, if you subtract two angles (angles A and B) from 180 degrees, you get the third angle (angle C). So: 180 - A - B = C
Can sum of two angles of a triangle be greater than the third angle?
Yes.
The sum of the measure of two angles of a triangle is 95 degrees What is the measure of the third angle?
The third angle is 85 degrees. The sum of all internal angles in a triangle is always 180 degrees
How do you find the third angle of a scalene triangle?
If you have the other two angles, you can subract them from 180 degrees, which is the sum of the angles in any triangle.
