![]() Some input data also results in two to three correct triangle solutions (e.g., if the specified triangle area and two sides - typically resulting in both acute and obtuse) triangle). ![]() In our case, one leg is a base, and the other is the height, as there is a right angle between them. The second phase calculates other triangle characteristics, such as angles, area, perimeter, heights, the center of gravity, circle radii, etc. To find the area of the triangle, use the basic triangle area formula, which is area = base × height / 2. Here, the student will learn the methods to find out the area, altitude, and perimeter of an isosceles triangle. For this special angle of 45°, both of them are equal to √2/2. These special properties of the isosceles triangle will help us to calculate its area as well as its altitude with the help of a few pieces of information and formula. If you know trigonometry, you could use the properties of sine and cosine. In our case, this diagonal is equal to the hypotenuse. ![]()
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