![]() ![]() acute scalene triangle: all sides have different lengths.Īs you see, once we understand what an acute triangle is, it's obvious how to decide if a triangle is acute if you know its angles: just take a look at these angles and make sure they are all strictly less than 90° (π/2 rad). Equilateral: 'equal'-lateral (lateral means side) so they have all equal sides Isosceles: means 'equal legs', and we have two legs, right Also iSOSceles has two equal 'Sides' joined by an 'Odd' side.acute isosceles triangle: two sides are equal and.acute equilateral triangle: all three sides are equal.Obtuse triangle: has an obtuse angle (and two acute angles).Īcute triangles can be further divided into three categories, based on the side lengths (more precisely, on side length ratio):.Right triangle: has a right angle (and two acute angles) and Equilateral triangle has three equal sides (and three equal angles) Isosceles triangle has two equal sides and Scalene triangle has no equal sides.Acute triangle: all three of its angles are acute.Obtuse angle: it measures more than 90˚ and less than 180˚.īased on that, we distinguish three types of triangles:.Right angle: it measures exactly 90˚ and. ![]() Acute angle: it measures less than 90˚.Equilateral triangle A triangle is called an equilateral triangle if all three of its sides are equal and its angles are equal as well (60° each). Math Processing Error h a 2 b a 2 L ( 1 + 2) a S a 2 4. Recall there are three types of angles that you can encounter while dealing with triangles: Triangles: Equilateral, Isosceles and Scalene We can classify triangles according to the length of their sides and the measures of their angles. Calculates the other elements of an isosceles right triangle from the selected element. ![]()
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