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Practice Workbook SE - East Penn School District

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Name<br />

LESSON 18.5<br />

Classify Triangles<br />

Classify each triangle. Write isosceles, scalene, or equilateral.<br />

1. 2. 3.<br />

4 in.<br />

1 m 1 m<br />

6 in.<br />

6 yd<br />

6 yd<br />

4 in.<br />

1 m<br />

7 yd<br />

4. 20 ft<br />

8 cm<br />

5. 6.<br />

35 ft<br />

45 ft<br />

10 cm<br />

9 cm<br />

23 cm<br />

23 cm<br />

23 cm<br />

7. 8. 9.<br />

4 mi<br />

6 in. 10 in.<br />

7 mi<br />

11 in.<br />

4 mi<br />

9 ft<br />

9 ft<br />

12 ft<br />

Classify each triangle by the length of its sides. Write isosceles,<br />

scalene, or equilateral.<br />

10. 12 in., 12 in., 12 in. 11. 65 yd, 43 yd, 65 yd 12. 45 mi, 23 mi, 56 mi<br />

Mixed Review<br />

Tell whether the figure has rotational symmetry, line symmetry,<br />

or both.<br />

13. 14. 15.<br />

© Harcourt<br />

PW100<br />

<strong>Practice</strong>

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