It may have no right angles, and certainly no parallel sides.
a triangle..
A triangle cannot have four angles.
A shape that has three sides and includes right angles is a right triangle. In a right triangle, one of the angles is exactly 90 degrees, and the other two angles are acute. The sides of the triangle consist of the two legs that form the right angle and the hypotenuse opposite the right angle.
An isosceles triangle.
Any triangle that is not a right angle triangle
False - and false ! Not ALL angles are right-angles - and a triangle has THREE sides !
Yes. A scalene triangle is, by definition, a triangle with all sides and angles different. An equilateral triangle has all sides and angles the same, an isosceles triangle has 2 sides and 2 angles equal, and a right triangle has a right angle, but it is also possible for an isosceles triangle to be a right triangle.
a triangle..
A triangle cannot have four angles.
There can be no such triangle.
An isosceles triangle.
Any triangle that is not a right angle triangle
This is a scalene triangle as it has no equal sides or angles. It is not a right angle triangle.
a 'SCALENE' triangle. ; No equal sides, and no equal angles. An ISOSCELES triangle has two equal sides and two equal angles. An EQUILATERAL tringle has three equal sides and three equal angles all at 60 degrees. A RIGHT ANGLED triangle has one right angle (90 degrees) in it.
EQUILATERAL triangle. Two sides the same length , and two angles equal is ISOSCELES Triangle A triangle with a Right-Angle is a RIGHT -ANGLED Triangle No equal sides/angles is a SCALENE triangle.
Certainly not. In an equilateral triangle, in which all sides and all angles are congruent (or in other words, are the same) then all angles are 60o angles, there is no 90o angle and therefore it is not a right triangle. A typical right triangle would have angles of 90o, 60o, and 30o, and each of the three sides would be a different length.
An EQUILATERAL Triangle. An ISOSCELES Triangle is two equal sides and two equal angles. A RIGHT-ANGLED Triangle has ONE right angle (90 degrees) A SCALENE Triangle has neither equal sides nor equal angles.