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Have at least two equal sides and two equal angles.All three angles are acute (less than 90 degrees).The properties of an isosceles acute triangle are listed below: What are the Properties of an Isosceles Acute Triangle? It is usually the unequal side of the isosceles acute triangle. The base is the side opposite to the vertex from where the height is drawn or measured. The area of an acute isosceles triangle can be calculated by using the formula: Area = 1/2 × base × height square units. What is the Area of an Isosceles Acute Triangle? At least two of its angles are equal in measurement and all three angles are acute angles. It comes in the category of both acute triangles and isosceles triangles. So, the perimeter of an isosceles acute triangle = (2a + b) units, where a and b are the sides of the triangle.įAQs on Isosceles Acute Triangle What is an Isosceles Acute Triangle?Īn isosceles acute triangle is a triangle that contains the properties of both the acute triangle and isosceles triangle. To find the isosceles acute triangle perimeter, we just have to add the length of all three sides. Look at the image given below showing isosceles acute triangle formulas for finding area and perimeter. Where a and b are the sides of the triangle and s is the semi-perimeter, which is (a + a + b)/2 or (2a+b)/2. If the length of all three sides are given, then area = \((s-a) \sqrt\).If the length of base and height of the triangle is given, then area = square units.There are two possible formulae that can be used to find the area of an isosceles acute triangle based on what information is given to us. The formula of an isosceles acute triangle is useful to find the area and perimeter of the triangle.