Consider a right triangle. One of the exterior angles 90 degrees.
A triangle with a 90° angle is called a "right triangle."
An exterior angle is on the outside of a shape. For example, the internal angle of a corner of a square is 90 degrees. 360 degrees less 90 degrees equals 270 degrees. Therefore, the exterior angle of a right-angle is 270 degrees. Search Google with "exterior angle" for more info.
Acute Triangle - All of the angles are under 90 degrees. Right Triangle - One angle is 90 degrees Obtuse Triangle - A triangle that has one angle greater than 90 degrees.
The 3rd angle of the triangle could be 90 degrees because the 3 angles in a triangle add up to 180 degrees.
a triangle has 180 degree but each exterior has 90 degree .
Consider a right triangle. One of the exterior angles 90 degrees.
an interior angle + and exterior = 180 Angle A: 180-30=150 Angle B: 180-60=120 Angle C: 180-90=90 Angle D: 180-120=60 SO WHATS THE ANSWER!!!?????
is an exterior angle of a quadrilateral always sometime or never 90 degrees
No. An interior angle plus its exterior partner add up to 180 degrees. In order for an exterior angle to be acute, its interior partner would have to be obtuse, which doesn't happen in an acute triangle.
A isosceles right angle triangle will have 2 equal interior angles of 45 degrees and 1 angle of 90 degrees with its largest exterior angle being 180 -45 = 135 degrees.
Any triangle that has an angle measuring 90 degrees is a right triangle.
Exterior angle of a square is 90 degrees Exterior angle of a regular pentagon is 72 degrees
Square = 90 degrees Pentagon = 72 degrees
A triangle with one angle over 90 degrees is an obtuse triangle.
A triangle with a 90° angle is called a "right triangle."
An exterior angle is on the outside of a shape. For example, the internal angle of a corner of a square is 90 degrees. 360 degrees less 90 degrees equals 270 degrees. Therefore, the exterior angle of a right-angle is 270 degrees. Search Google with "exterior angle" for more info.