![]() The other two base angles in this type of triangle are equal, each measuring 45 degrees due to the symmetry of the triangle and the requirement that all angles in a triangle add up to 180 degrees. Notice that all equilateral triangles are isosceles. A right isosceles triangle features a vertex angle that is a right angle, measuring precisely 90 degrees. ![]() The isosceles triangle theorem states that the angles opposite to the equal sides of an isosceles triangle are equal in measurement. An isosceles triangle is a triangle which has at least to sides equal to each other. ![]() Recognise that arcs in vertices can be used to indicate equal. Out of the three interior angles, the angles apart from the apex angle are equal in measure. Recognise equilateral, isosceles and scalene triangles To interpret a diagram: Recognise that hash marks indicate equal lengths. The sum of consecutive interior and exterior angle is supplementary. ![]() Trending Questions What is 426 rounded to the nearest ten? Is 0 an odd number? Is 700 divisible by 5? What is 58 - 12? It takes Linda 36 seconds to jog to a store that is 72 miles away what is her average speed? Write 0.705 as a fraction in lowest terms? What is the product of 0.81 and 0.012? What is 3 over 4 in an decimal? What is 30 percent of 1100 dollars? What is 835 rounded to the nearest hundred? What number is in the halfway between 78? What is bigger 8417mm or 84.17m? What is the number form for 2400 million? How can a person fairly divide 10 apples among 8 children so that each child has the same share? How do you write 35 as a fraction and in simplest form? What is the coefficient of the squared term in the parabola's equation when the vertex is at 2 -1 and the point 5 0 is on it? What two numbers multiplied equals 630? What another word for something to make worse? Is 6. Like any other triangle, there are three angles in an isosceles triangle which add up to 180. The exterior angles of a triangle always add up to 360 degrees. ![]()
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