8.4

LESSON 8.4 NAME DATE Practice A For use with pages 430-438 Identify a base of the shaded triangle and its corresponding height. 3. X B S R Find the area of the right triangle. 4. 8 in . 5. 6. 2 m 3 in. 4 cm 6 m 7 cm Find the area of the shaded triangle. 7. 8. 9 10 mm 4 yd 5 mm 9 ft 5 yd A gives the area of the triangle. Find the height h. 10. A = 27 yd2 11. A = 18 m 12. A = 48 cm2 12 m 9 yd 12 cm In Exercises 13 and 14, the scale factor of two similar triangles is given. Find the ratio of their areas. 13. The scale factor of APOR to A XYZ is . 14. The scale factor of APOR to A XYZ is 15. The base of a triangular camping sign is 6 feet and the height of the sign is 3 feet. Find the area of the sign. 13 ft CAMPING 6 ft