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Warm-up with 4.2 Notes on Isosceles Triangles 2) Copy Angle EBC and name it Angle LMN. ------------------------------------------- 3) Copy EC and add it to JK. ------------------------------------------------- --------------------------------------------
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Answers to 3.1 # 1 - 4
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Answers to 4.1 #2-9 all numbers
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Student of the day! Block 1
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Student of the day! Block 3
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Constructing a Perpendicular Bisector pg. 150 Also the way you find midpoint. Constructing a median on a triangle: Find the midpoint of one side of the triangle. Then connect the midpoint to the opposite vertex.
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4.2 Isosceles Triangle Isosceles Triangles have special names for their angles and sides.
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Practice Problems 1) An isosceles triangle has a vertex angle that measures 30 degrees. What are the other angle measures? 2) An isosceles triangle has a base angle that measures 70 degrees. What are the other angle measures?
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3.2 and 4.2 Conjectures C-5 Perpendicular Bisector Conjecture – If a point is on the perpendicular bisector, then __________________. C-6 Converse of the Perpendicular Bisector – If a point is equidistant from the endpoints of a segment, then it is on the ________________ of the segment. C-19 Isosceles Triangle Conjecture - If a triangle is isosceles, then _____________________. C-20 Converse of the Isosceles Triangle Conjecture - If a triangle has two congruent angles, then _______________.
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H.W. Assignment 3.2 pg 151 – 152 #1,2, 4 and 7 4.2 pg 208 – 209 # 2- 14 even #s Help with #14 13)Complete the statement. Remember to write the congruent parts in order.
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