missing angle

. DAFFYNITION DECODER.. EUROPE: 30 42 21 24 74 20 210 240 37 49 20 42 17 32 50 20 UNDERGROUND GARAGE: 460 50 go 90 28 20 7 460 50 go 9 70 510 50 24 680 34 20 TO DECODE THE TWO DAFFYNITIONS ABOVE: For the first nine exercises, find the measure of the angle indicated. For the remaining exercises, find the angle measure needed to solve the problem. Round to the nearest degree. Each time the answer appears in the code, write the letter of the exercise below it. C O 5 U 11 9 P 5 10 Y 20 W O 50 15 13 30 21 45 12 1 25 L A driveway is built on an incline so that it rises 3 m over a distance of R Each step of a stairway rises 16 cm for a tread width of 36 cm. What 20 m. What is the angle of elevation angle does the of the driveway? 20 stairway make with the 36 floor? 16 B A roof is constructed as shown in the T A train decreases its altitude by 8 m diagram. Find the when traveling along 200 m of track. pitch (angle of Find the angle of depression of the elevation) of i10' track. the roof. -16'- 200 D-62 OBJECTIVE 5-d: To use trigonometric ratios to find measures of angles of right triangles