Draw an L then connect the top to the bottom right.
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Yes it is a right angle triangle.
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
A right triangle is a triangle with a right angle.a right triangle is a triangle with 1 side as a right angle
A triangle with a right angle is a right triangle.