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Geometry Review Unit 2 - Triangles Identify and solve problems using: Median Angle Bisector Altitudes Perpendicular Bisector Solve multistep problems involving angle measure, side length, perimeter, and area of all types of triangles. Triangle inequalities The range of a missing side is largest side – smallest < x < largest side + smallest Sum of 2 smallest sides is greater than largest side Smallest side is across from smallest angle Largest angle is across from largest side Sum of exterior angles Always – 360 degrees Area of triangles A = ½ bh (h = altitude of triangle) Sum of interior angles S = (n-2)180 Perimeter Isosceles triangle and equilateral triangles Solve problems involving these special triangles Triangle Congruence Complete simple proofs Identify congruent triangles Write congruence statements ASA SAS AAS HL SSS Triangle Similarity Identify similar triangles Prove two triangles are similar by using proportional sides or one of the theorems SSS SAS AA Solve for missing sides in similar triangles using proportions
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