Chapter 5 TRIANGLE PROPERTIES Geometry 1 A Practice

Chapter 5 TRIANGLE PROPERTIES Geometry 1 A Practice Problems Pat Brewster 1

1. The sum of the angles of a D is _____ 2. If a D is isosceles, the base angles are___ • 1. • 2. 2

The sum of the lengths of two sides of a D is ______________ • Which of the following could be three sides of a triangle? Why? • 1. 3 cm. , 7 cm. and 6 cm. • 2. 2 cm. , 7 cm. and 2 cm. • 3. 18 cm. , 25 cm. and 36 cm. • 4. 10 cm. , 19 cm. and 34 cm. 3

INEQUALITIES List the sides of the top triangle in order from smallest to largest. _____ List the sides of the bottom triangle in order from smallest to largest. _____ k w 60 75 d a n List the sides of the whole figure in order from smallest to largest. _____ ____ 50 Figure not necessarily drawn to scale. 4

CONGRUENCE SHORTCUTS • Congruence Shortcut: ____ • Name the congruent triangles: ______ • Explanation: 5

CONGRUENCE SHORTCUTS • Congruence Shortcut: ____ • Name the congruent triangles: ______ • Explanation: 6

CONGRUENCE SHORTCUTS • Congruence Shortcut: ____ • Name the congruent triangles: ______ • Explanation: 7

CONGRUENCE SHORTCUTS • Congruence Shortcut: ____ • Name the congruent triangles: ______ • Explanation: 8

CONGRUENCE SHORTCUTS Overlapping Triangles • Congruence Shortcut: ____ • Name the congruent triangles: ______ • Draw the triangles separately label and mark them. 9

CONGRUENCE SHORTCUTS Overlapping Triangles • Congruence Shortcut: _____ • Name the @ triangles: D AFB @ D ______ • Draw the triangles separately. Label. Mark the congruent parts. 10

CONGRUENCE SHORTCUTS Triangles NOT Overlapping • Congruence Shortcut: _____ • Name the @ triangles: D AEB @ D ______ • List the pairs of congruent parts. 11

FLOW CHART PROOF 12