Question
Hi dear, i want you to solve these problems
EXERCISE 1.2 # 15,18,25,30,40
EXERCISE 1.3# 17,20,23,26,29,32.35,38,41?
gure 13. b=51 in., a= ?, c= ? 14. b = 32 cm, a= ?, c= ? 15. a= 23.4 m, b= ?, c= ? 16. a= 63.19 cm, b= ?, c= ? 17. b= 2.489 × 109yd, a= ?, c= ? 18. b= 1.037×1013m, a= ?, c=? 19, c= 8.39×10-5mm, a= ?, b= ? 20° c = 2.86 × 10-8cm, a = ?, b = ? In Problems 25 and 26, point P is outside a circle. A line through P intersects the circle at points A and B, with A between P and B. A second line through P intersects the circle at C and D, with C between P and D 25. Explain why triangles PAD and PCB are similar 26. Explain why triangles PAC and PBD are similar. Applications 27. Tennis A ball is served from the center of the baseline CIn Problems 21 and 22, find the unknown quantities by mak into the deuce court. If the ball is hit 9 ft above the ground and travels in a straight line down the middle of the court, and the net is 3 ft high, how far from the base of the net will the ball land if it just clears the top of the net? (See the figure.) Assume all figures are exact and compute the answer to one decimal place ing a scale drawing (download a protractor and ruler if you don't have them). 21. Suppose in the figure that ZA-70°, ZC -90°, and a 101 ft. Estimate 22. Suppose in the figure that LA = 50°, C-90°, and b 36 ft. Estimate c 28. Tennis If the ball in Problem 27 is hit 8.5 ft above the In Problems 23 and 24, let P be a point on AB in the figure such that CP is perpendicular to AB. 23. Explain why triangles ACP and BCP are similar 24. Explain why triangle ACP is similar to triangle ABC. ground, how far away from the base of the net will the ball land? Assume all figures are exact and compute the answer to two decimal places. (Now you can see why tn nis players try to spin the ball on a serve so that it curves downward.) 21 ft 18 ft 9 ft Deuce court 3 ft 27 ft 78 ft Figure for 27 and 28
Explanation / Answer
Exercise1.3
17 cos54.3
