16. Which of the following will be the length of the diagonal of a square whose side measures 10 ft. long? A. 5 ft. B. 10v2 ft. C. 5V2 ft. D. 20 ft. 17. In a 30°60°90° right triangle, what do you call the side opposite the 30° angle? A. Hypotenuse B. Longer Leg C. Longest Leg D. Shorter Leg 18. In a right ZABC with right angle at B, ZA= 30° and AB-6 cm. Find the length of BC. A. V3 cm C. 6 V3 cm D. 2 v3 cm B. 8 V3 cm 19. Which of the following measurements must be the length of side a and b, respectively? 25 A.a = 3 C. a = 2V5. ;b = 9 4V5 3 2V15 ;b 3D 4V15 D. a = 2V15 ;b D B.a 4V15 %3D 2/5 6. 3 20. The length of the side of an equilateral triangle is 3V3 cm. Find the length of its altitude. 60° А. 9 cm a C. 3V32 cm 9. В. D. 3V62 cm cm

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