Geometry Name Classifying Triangles Practice Date Classify each

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Geometry Name: _____________ Classifying Triangles Practice Date: ______________ Classify each triangle by its sides

Geometry Name: _____________ Classifying Triangles Practice Date: ______________ Classify each triangle by its sides and by its angles. 1. A 2. E 60° 30° B 4. C L 60° 40° D I 42° 40° F 5. M 60° J 3. 100° 38° G 55° K H P 6. N 100° 45° 115° 20° 7. In DABC which side is the longest? ____ O 45° Q R the shortest? _____ 8. In DDEF which side is the longest? ____ Which two have the same length? _____ 9. In DGHI which side is the longest? ____ the shortest? _____ 10. In DJKL what is true about the lengths of the sides? ______________ 11. In DMNO which side is the longest? ____ the shortest? _____ 12. In DPQR which side is the longest? _____ Which two have the same length? _____ In each triangle, name the smallest angle and the largest angle. S 5 V 6 A 5 11 3 U 7 T W 4 X 8 Y 6 smallest largest Z

Geometry Unit 5 Name: _____________ Exterior Angle Theorem Exploration - Practice 1. Date: ______________

Geometry Unit 5 Name: _____________ Exterior Angle Theorem Exploration - Practice 1. Date: ______________ 2. 105° 60° x x 70° 40° x = _______ 3. x = _______ 4. y x 30° 140° z y 35° 50° x x = _______ y = _______ 5. 6. 2 y 3 x - 1 4 x 7 x - 2 130° 12 x - 27 x = _______ y = _______

Geometry Name: _____________ Triangle Sum and Classifying Triangles 1. Date: ______________ 2. B B

Geometry Name: _____________ Triangle Sum and Classifying Triangles 1. Date: ______________ 2. B B 6 x + 18 A A 32° C Classify the triangle by its sides: ________ What two sides are congruent? _________ What two angles are congruent? ________ mÐC = ______ 3. A B 112° mÐB = ______ 36° C mÐA = ______ Are any of the angles congruent? ________ Therefore, are any of the sides congruent? _______ Classify the triangle by its sides: ________ Classify the triangle by its angles: _______ Order the side lengths from longest to shortest: Longest: _____ Middle: _____ Shortest: ______ The sum of the measures of the interior angles of a triangle will always be _____. 9 x - 3 C Classify the triangle by its sides: ________ What two sides are congruent? _________ What two angles are congruent? ________ x = _______ mÐB = ______ mÐC = ______ mÐA = ______ 4. Classify the D by its sides: __________ Classify the D by its angles: __________ What is the measure of each interior Ð of the D? ____

Geometry Name: _____________ Triangle Sum and Classification Practice Date: ______________ 5. A 6. 2

Geometry Name: _____________ Triangle Sum and Classification Practice Date: ______________ 5. A 6. 2 x+4 4 x B C 14 x+3 104° B 17 x-6 A C x = ___________ mÐA = ____ mÐB = ________ mÐC = __________ Classify the D by its sides: ____________________ Classify the D by its angles: _______________ 7. 8. A D AC is a median of DBAD A AC is an altitude of DABD mÐACB = 8 x + 2 2 x + 2 C 4 x – 5 B B C D x = ______ DC = _______ mÐACB = ______ BC = _______ mÐACD = ______