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what is formula of isosceles triangle. To calculate the area of an equilateral triangle the following formula is used. P 2 a b.
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The Formula for Isosceles Triangle. To find the altitude given the base and leg use the formula. P 2 a b.
To calculate the area of an equilateral triangle the following formula is used.
Another situation where you can work out isosceles triangle area is when you know the length of the 2 equal sides and the size of the angle between them. A ½ b h. Below is an image of a standard isosceles triangle which has all the sides and an one of the angles labelled. An isosceles triangle is a triangle that has two sides of equal length.
