3 find x 4 find y 5 find the length of the hypotenuse

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3. Find x. 4. Find y. 5. Find the length of the hypotenuse of a right triangle whose legs measure 5 and 7. 6. Find x. 7. Which of the following could represent sides of a right triangle? 8. Find c. 9. Find the perimeter of a square to the nearest tenth if the length of its diagonal is 12 inches. 10. Find x. 11. Find x to the nearest tenth. 12. In right triangle ABC, a = 12, b = 9, and c =15. Find tan B. Page 1/12
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13. Find x to the nearest tenth of a degree. 14. If a 20-foot ladder makes a 65° angle with the ground, how many feet up a wall will it reach? Round your answer to the nearest tenth. 15. A ship’s sonar finds that the angle of depression to a wreck on the bottom of the ocean is 12.5°. If a point on the ocean floor is 60 meters directly below the ship, how many meters, to the nearest tenth, is it from that point on the ocean floor to the wreck? 16. To the nearest tenth of a degree, find the angle of elevation of the sun if a building 100 feet tall casts a shadow 150 feet long. 17. In CDE, m C = 52, m D = 17, and e = 28.6. Find c to the nearest tenth. 18. In PQR, p = 56, r = 17, and m Q = 110. Find q to the nearest tenth. 19. Find the sum of the measures of the interior angles of a convex 45-gon. 20. Find x. 21. Find the sum of the measures of the exterior angles of a con vex 39-gon. Page 2/12
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