![]() ![]() In an isosceles triangle as per the theorem if two sides are said to be congruent then the opposite angles to the two sides are also said to be congruent. If there are two angles alternatively then they are congruent in a triangle which is isosceles. How do you calculate the angle of an isosceles triangle How to Calculate the Angles of an Isosceles Triangle. The sides are known to be opposite and they are also congruent. ![]() Given any angle in an isosceles triangle it is possible to solve the other angles. Use the following formula to solve the base angle: 180° 2. The base angle is equal to 180° minus vertex angle. Imagining a triangle and naming it as ABC to its three sides respectively.Īn obtuse angle can be defined as a triangle whose any one of the angles is an obtuse angle or we can say more than 90 degrees then the angle is known as an obtuse or an angled triangle or obtuse triangle. The property is the sum of the angles that are interior angles of the obtuse triangle is equal to 180 degrees. There are a few special facts about the triangle: This concludes that the angle sum property for any triangle remains unchanged. A triangle that is equilateral can never be obtuse.We can say so as an equilateral triangle has all its sides as equal and angles equal as well. A scalene triangle is a triangle with no lines of symmetry while an isosceles triangle has at least one line of symmetry and an equilateral triangle has. And the measure of each angle is 60° which is acute. Therefore we need to note that an equilateral angle can never be an obtuse-angled triangle. ![]()
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