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There are three main types of triangle:
- Scalene - all angles are different and all sides are different lengths
- Isosceles - Two sides are equal in length and the two angles (between the third side and the two sides of equal length) are equal
- Equilateral - All three angles are equal (at 60°) and all three sides are of equal length.
If all angles are less than 90° then the triangle can also be described as an Acute triangle; an equilateral triangle is acute by definition as all angles are 60° which is less than 90°.
A Scalene or Isosceles triangle can also be described as a Right angle triangle if one angle is 90° (a right angle); in the isosceles triangle this is the angle between the sides of equal length.
A Scalene or Isosceles triangle can also be described as an Obtuse triangle if one angle is greater than 90°; in the isosceles triangle this is the angle between the sides of equal length.
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Find the area of a right triangle?
Simple. Just multiply the base by the height of the triangle, and divide it into two. This works for all types of triangles.
How do you find the area of an irregular triangle?
Simple. Just multiply the base by the height of the triangle, and divide it into two. This works for all types of triangles.
What is a three sided shape called?
A triangle - It comes in three types -the Equilateral triangle - all sides of equal lengththe Isosceles triangle - two sides of equal lengththe Scalene triangle - all sides of different length
Which triangle has no two sides congruent?
A triangle which has no two sides congruent is called a Scalene Triangle.
If two angles in a triangle are congruent to two angles in another triangle then the angles are also congruent.?
If two angles in a triangle are congruent to two angles in another triangle, then the ______________ angles are also congruent.
