6.7 Proving Right Triangles Congruent by Hypotenuse and Leg
~ Two right triangles are congruent if the hyp and a leg of one triangle are congruent to the corresponding parts of the other
(hyp.leg≅hyp.leg)
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Given: BD AC
AB≅CB
Prove: ADB≅ CDB
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6.8 Exterior Angles of a Triangle
~ The measure of an exterior angle of a triangle is equal to the sum of the measures of the 2 nonadjacent interior angles.
Example:
In triangle ABC, CD is drawn so that CD≅CA. If m ACD = 70, find:
a) m CAD
b) m CDB
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EX) Find x:
EX) Find the degree measure of either exterior angle formed by extending the base of an isosceles triangle if the vertex angle of the triangle measures: 50
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Homework:
6.7 page 233 #1‐3,5
6.8 page 235 #1‐5odd, 7a&c, 8, 11‐14
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