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1. For each of the following triangles, determine the length of 3; (Pictures not drawn in scale): @l (b)- @l 5 10 37 2. See

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1. For each of the following triangles, determine the length of 3; (Pictures not drawn in scale): @l (b)- @l 5 10 37 2. See again the problems #1(a)) (b); (c) above. Find the trigonometric ratios. (a). sinoz; cosa; tana (b). sin; cos; tan (c). sin'y; cosy; tan'y 3. In the three problems below, use the given information to consider a right triangle labeled like the one shown. Use the trigonometric ratios and a calculator to nd the unknown sides ((1,1), (3) and the angles (6,913). 925 (a). a: 18, =69 (b). b212, 9:370 (c). c=54, 9:520 (d). c = 0.92, as = 49.90 4. A communications antenna is on tOp of a building. You are 100 ft from the building. Using a transit (a surveyor's instrument), you measure the angle of elevation of the bottom of the antenna as 20.60 and the angle of elevation of the top of the antenna as 27.3". How tall is the antenna? 5. Convert each of the following angles into radians and sketch the angle. (a). 135 (b). -450 (c). 200 (d). -150 (e). 70 6. Convert each of the following angles into degrees and sketch the angle. (a). 27 radians (b). - 57 radians (c). 1 radian (d). 27 radians

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