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Transcript
Bell Ringer 9 Given: V is the midpoint of YW, UY is parallel to XW Prove: Triangle UVY is congruent to Triangle XVW Homework due Monday: 4.6 Pg. 289 293 (10 66, every 4th) 1 2 Today's objectives: Use properties of isosceles and equilateral triangles 3 Vocabulary Terms: Legs of Isosceles triangle the two congruent sides Vertex angle of isosceles triangle angle formed by the legs of the triangle. Base angles of isosceles triangle two angles formed by the base and the congruent sides 4 Congruent Segments and Angles: Name two congruent unmarked angles: Name two unmarked congruent segments: 5 Find missing measures: a. Given an isosceles Triangle of XYZ where XY is 8 in and XZ is 8 in. The vertex angle is 60*. Find m<Y and length of YZ. b. Given an isosceles Triangle of PMN where MN is 11cm and the vertex angle is 120* (<N). Find m<M and PN 6 Find missing values: Given Triangle ABC is isosceles, where AB and AC are the legs and AB = 4y 2 and AC = 2y + 2. The vertex angle is 80* and <C = 6x + 8. Find x and y. 7 8 9