It is an isosceles triangle.
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When a triangle has no angles =to 90 degrees, it is called an oblique triangle.When one of the angles of an oblique triangle is greater than 90 degrees, it can also be called an obtuse triangle.Technically, the triangle described would also be a type of scalene triangle, although we should only call it this when it is defined by the length of its sides, rather than by its internal angles.
Construct an equilateral triangle because each of its 3 exterior angles measures 120 degrees
The premise is impossible. The sum of the angles of a triangle is 180 degrees.
Supplement angles = 180° So 180° - 120° = 60° Complementary angles = 90°
Interior Angles of a Triangle: 60 Exterior Angles of a Triangle: 120 Interior Angles of a Heptagon 128 (approx) Exterior Angles of A Heptagon 52 (approx) Answer: Triangle
A triangle has only three angles and they sum to 180 degrees.
120 degrees.
When a triangle has no angles =to 90 degrees, it is called an oblique triangle.When one of the angles of an oblique triangle is greater than 90 degrees, it can also be called an obtuse triangle.Technically, the triangle described would also be a type of scalene triangle, although we should only call it this when it is defined by the length of its sides, rather than by its internal angles.
All triangles have angles that total 180degrees. If given 2 angles add them together and subtract (or take away from) 180, answer is angle. Example A triangle has 2 angles of 90 & 30 degrees what is the 3rd angle. 90+30=120, 180-120=60degrees
draw a base and use this to draw an equilateral triangle each angle of an equilateral triangle adds up to 60 degrees. To have an angle of 120 degree use this angle and then draw another side of a triangle next to it to get a 120 degree angle.
Construct an equilateral triangle because each of its 3 exterior angles measures 120 degrees
Construct an equilateral triangle which will have 3 equal interior angles of 60 degrees and 3 equal exterior angles of 120 degrees
sum of all angles in a triangle is always 180. So 30 degrees, plus the right angle (90) = 120. 180-120 = 60
An Obtuse Triangle
All angles in a triangle must equal 180, therefore 180 - 120 = 60
The premise is impossible. The sum of the angles of a triangle is 180 degrees.
Each of the interior angles of an equilateral triangle is 120 degrees.