(p. 285) The two angles ______ by the base and the congruent sides are called the base angles.
(p. 276) If ___ angles and the nonincluded side of one triangle are congruent to the corresponding ___ angles and side of a second triangle, then the two triangles are congruent.
(p. 285) The side of the triangle opposite the vertex angle is called the ____.
(p. 287) You can use the properties of equilateral triangles and _______ to find missing values.
(p. 304) The ____________ of the x- and y-axes form a right angle, so it is a convenient place to locate the right angle of a figure such as a right triangle.
(p. 286) ____ angle of an equilateral triangle measures 60.
(p. 258) Like congruence of segments and angles, congruence of triangles is reflexive, _________, and transitive.
(p. 285) The angle with sides that are the legs is called the ______ angle.
(p. 264) If _____ sides of one triangle are congruent to _____ sides of a second triangle, then the triangles are congruent.
(p. 255) In two congruent _________, all of the parts of one polygon are congruent to the corresponding parts or matching parts of the polygon.
(p. 255) Valid congruence statements for congruent polygons list corresponding ________ in the same order.
(p. 303) __________ proofs use figures in the coordinate plane and algebra to prove geometric concepts.
(p. 268) When triangles _______, it can be helpful to draw each triangle separately and label the congruent parts.
(p. 277) Congruence of ___ three corresponding angles is not sufficient, however, to prove two triangles congruent.
(p. 285) The two congruent sides are called the ____ of an isosceles triangle.
(p. 285) If two sides of a triangle are congruent, then the angles _______ those sides are congruent.