![]() So let's say I told you that this was 6, 2 and 9 as the lengths of those three sides, that would be considered scalene because none of these sides are equal to each other. Now comparing the three sides, we can identify scalene triangles. You can't have two 90 degree angles in a triangle because that will be a straight line and you couldn't form a triangle, so you know that in a right triangle your 90 degree angle will always always always be the largest angle. Next is a right-angle, excuse me a right triangle I got ahead of myself, a right triangle is identified by having one 90 degree angle. For an equilateral triangle however, you need three congruent sides an isosceles doesn't have that many. But an equilateral triangle is isosceles, the reason is isosceles you only need two congruent sides which an equilateral triangle does have. So we're going to call these, legs and an isosceles triangle is not an equilateral triangle. Moving on, if we have an isosceles triangle, which make sure you know how to spell this nothing drives Geometry teachers more insane than isosceles being spelt incorrectly, but an isosceles triangle has two sides that are congruent to each. Now just for triangles again this doesn't apply to quadrilaterals but just for triangles an equilateral triangle is the same as an equiangular triangle. ![]() ![]() ![]() If we talk about an Equiangular triangle, we're talking about a triangle where the three angles are all congruent to each other and since the sum of these angles is 180, 180 divided by 3 means that each of these angles measures 60 degrees.Īn equilateral triangle means that the three sides of your triangle are all congruent. There are many different types of triangles and some of them actually overlap. ![]()
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