Base h a 3a2 a 2 32. Find the height of an equilateral triangle whose side is 28 cm. Area of Equilateral Triangle A 34a2 Where a length of sides Learn more about isosceles triangles equilateral triangles and scalene triangles here.
Pythagorean Theorem Lesson on how to use it Geometric Mean For Right Similar Triangles.
Khan Academy has a nifty drag tool that lets you see how the area of a triangle is found using the rectangleparallelogram its inscribed in. By changing the labels on the triangle we can also get. 4a 2 4 a 2 4 h 2. Proof Area of Equilateral Triangle Formula According to the properties of an equilateral triangle the lengths of an equilateral triangle are the same for all three sides.