No because each 3 angles of an equilateral triangle measures 60 degrees.
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Draw an L then connect the top to the bottom right.
It will be a right angled triangle with angles of 90, 72 and 18 degrees.
A triangle can only have 1 right angle or 1 obtuse angle in it because its 3 interior angles add up to 180 degrees
It will be right angle triangle
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.