The angle-side-angle ASA rule states that when two angles and one side of a triangle are equal to that of another triangle they are congruent triangles. Right triangles with 30-60-90 interior angles are known as special right triangles.
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The sides of the triangle DEF are the same exact lengths as triangle GHI making them congruent.
. See the right-angled triangles below. Special triangles in geometry because of the powerful relationships that unfold when studying their angles and sides. In two triangles if the three sides of one triangle are equal to the corresponding three sides SSS of the other triangle then the two triangles are congruent.
See triangles JKL and MNO. We can use this knowledge of congruent sides and angles to. In the following figure AB BC and AD.
A triangle with three congruent sides is a special type of isosceles triangle and is more specifically called equilateral. A 30-60-90 triangle is a right triangle where the three interior angles measure 30 60 and 90.
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