A right angle triangle has a 90 degree angle and two acute angles which all add up to 180 degrees
a triangle a triangle
A right triangle.
Such a three sided triangle with two right angles is impossible.
A three sided polygon (aka triangle) with one of it's angles being 90 degrees.
Providing it has no right angles then it is a scalene triangle.
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.
It looks like a square with a triangle on top of it.
A triangle has no right angles when it is not a right angle triangle as for example as in the case of an equilateral triangle that has 3 equal 60 degree angles.
The main differences are. A triangle is three sided while a rectangle is four sided. The corners of a triangle can be any angle. All corners of a rectangle must be 90 degrees. This means that the left and right sides are parallel, and the top and bottom sides are parallel.
There are no obtuse angles in a right triangle. A right triangle consists of one right angle and two acute angles.
they are two dimensional shapesthey are trianglesthey have three sidestheir interior angles add up to 180 degreestheir exterior angles add up to 360 degreesthey have at least two sides of different lengthsRight triangle: three sided two dimensional shape with one right angleScalene triangle: three sided two dimensional shape with three sides of different lenghtsBeing Scalene and being Right are not mutually exclusive. A Scalene triangle can also be a Right triangle, and vice versa.
A three sided shape is a triangle, all the angles in a triangle add up to 180 degrees.