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If a triangle has two congruent angles is it isosceles?
Yes, because of the base angles theorem converse: If two angles in a triangle are congruent, then the sides opposite the angles are congruent.
What is the four right angles theorem?
The theorem states "If two angles are both supplementary and congruent, then they are right angles."
What is a vertical angle theorem?
The Vertical Angles Theorem says that a pair of vertical angles are always congruent.
What is the Converse of isosceles triangle theorem?
The isosceles triangle theorem states that if two sides of a triangle are congruent, the angles opposite of them are congruent. The converse of this theorem states that if two angles of a triangle are congruent, the sides that are opposite of them are congruent.
Are Base angles of an isosceles triangle are congruent?
Yes, the base angles of an isosceles triangle are always congruent. An isosceles triangle commonly has two sides that are equal in length. The base angles are the angles opposite those two equal sides of the triangle. A geometric theorem states that if two sides of a triangle are congruent, then the angles opposite those sides are congruent. The converse is also true.
If two angles of a triangle are congruent then the sides opposite those angles are congruent by the converse to the Isosceles Triangle Theorem?
Yes, because an isosceles triangle has two equal base angles and two equal sides.
What is the Right angles congruence theorem?
All right angles are the same.
What is the Congruent Supplements Theorem?
if two angles are supplements of congruent angles, then the two angles are congruent.
What is the definition of congruent angles theorem?
If the angles are congruent, they will be less than 360 degrees.
What is AA similarity theorem?
The AA similarity theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. This theorem is based on the Angle-Angle (AA) postulate, which states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.
What is the complement theorem?
If the noncommon sides of two adjacent angles form a right angle, then the angles are complementary angles.
Which angles can be compared using the Hinge Theorem?
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