Download 4-1 Guided Notes Classifying Triangles

NAME _____________________________________________ DATE ____________________________ PERIOD _____________
4-1 Guided Notes
Classifying Triangles
Classify Triangles by Angles One way to classify a triangle is by the measures of its angles.
Classify Triangles by Sides You can classify a triangle by the number of congruent sides. Equal numbers of hash
marks indicate congruent sides.
Exercises
Classify each triangle as acute, equiangular, obtuse, or right.
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Chapter 4
5
Glencoe Geometry
NAME _____________________________________________ DATE ____________________________ PERIOD _____________
4-1 Study Guide and Intervention (continued)
Classifying Triangles
Exercises
Classify each triangle as equilateral, isosceles, or scalene.
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7. ALGEBRA Find x and the length of each side if
△RST is an equilateral triangle.
Classify
8. ALGEBRA Find y and the length of each side if
△ABC is isosceles with AB = BC.
PQO by its sides.
Classify ΔABC by its sides. Then determine if the triangle is a right triangle. The vertices are A(0,0), B(3,3) and
C(-3,3).
Chapter 4
6
Glencoe Geometry