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They are as follows although there are so many more:-
1 It's a 2 dimensional 3 sided polygon
2 It's one of 5 in the class of triangles
3 It has 3 interior angles that add up to 180 degrees
4 It has 3 exterior angles that add up to 360 degrees
5 It has a right angle which means 90 degrees
6 It has 2 acute angles which are greater than 0 but less than 90 degrees
7 It like all triangles will tessellate
8 It has a perimeter which is the sum of its 3 sides
9 It has an area which is 0.5*base*height
10 It has no lines of symmetry unless it's a right isosceles triangle
11 It has an hypotenuse which is its longest side
12 It has opposite and adjacent sides
13 It can be doubled up into a square or a rectangle
14 It's subjected to trigonometry
15 Its tangent ratio is: opposite/adjacent
16 Its sine ratio is: opposite/hypotenuse
17 Its cosine ratio is: adjacent/hypotenuse
18 It's subjected to Pythagoras' theorem of: a2+b2 = c2
19 Its properties were known by ancient civilisations
20 It's used in coordinated geometry to find a straight line's gradient
21 It has no diagonals
QED By David Gambell
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There are only three essential facts about a right angled triangle. One is that is has a right angle. In addition, if you know one angle and the length of a side, or the lengths of two sides, the triangle is uniquely determined. That is all the essential information and anything else is not essential for determining the triangle.
What else can I help you with?
When one angle in a triangle is right angle it is called as?
A right angle triangle
Does a right angle triangle have 90 degree angle?
Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!Yes. That is why it is called a right angle triangle!
A triangle with one right angle?
A triangle with 1 right angle is a right angle triangle.
What is equivalence logic?
1. A triangle is a right triangle if and only if it has a right angle. 2. A triangle has a right angle if and only if it is a right triangle.
If a triangle has no obtuse angle then it is a right triangle?
It could be a right triangle if it has a right angle (90 degrees). If it does not have a right angle, then it is an acute triangle.
If a triangle has a right angle it is a right triangle. If and only if a triangle had a right angle it is a right triangle?
A right angle triangle has a right angle and two acute angles that all add up to 180 degrees.
1 If a triangle has a right angle it is a right triangle?
Yes it is a right angle triangle.
What is a triangle with one right angle?
a right triangle has one right angleA triangle with a right angle is a right triangle.
In a right triangle, the is opposite the right angle?
The side opposite the right angle of a right angle triangle is the hypotenuse
What kind of triangle has a right angle?
A right triangle is a triangle with a right angle.a right triangle is a triangle with 1 side as a right angle
Which triangle do not have a right angle?
An oblique triangle has no right angle.
What is the name of a triangle with an angle that is a right angle?
a right triangle
