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on peaper please Name: MBF3C - Unit #5C Assignment: Trigonometry SOH CAH TOA SINE LAW COSINE LAW: sing - Re SinA SinA sinc ambl +

on peaper please

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Name: MBF3C - Unit #5C Assignment: Trigonometry SOH CAH TOA SINE LAW COSINE LAW: sing - "Re SinA SinA sinc ambl + c' - 2bc cos.A sinA Stall sinc A = cos 1 (b*+el-azy Zhe 1. A flagpole casts a shadow of 25 m when the sun's rays make an angle of 34' with the ground. How tall is the flagpole, to the nearest metre? Make sure to label your diagram. [3 marks] ton @ = I . The flagpole is tangy = 25 1 7 m fall 25 tan 34 in - 16. 86 : 17m 3. Two motorcyclists diverge from a common point in Stoney Creek. One motorcyclist travels 79 km to Port Dover to go to the beach, and the other motorcyclist travels 63 km to Niagara Falls to visit the Hershey store. Once they reach their destinations, they are now 92 km apart. At what angle (rounded to the nearest degree) did the motorcyclists originally diverge? Fill in the diagram for full marks. [4 marks] A = (05- 1 / 62 + (2- c? ) 2 bC = 80 A = (65/ 13#+ 79#- 92 2 2 ( 63 ) ( 74 ) sinB 60 = sin 80 N 79 13 P 5in B = 4. The span of a bridge is the distance between its supports. A helicopter is hovering above the longest span of the Ambassador Bridge, which connects Windsor and Detroit. The distances to the ends of the longest span and the angle between the lines of sight are shown. What is the length of the longest span of the bridge, WD, to the nearest metre? [3 marks] a 2 63 ( 7 - 2 ( 6 ) ( 6 ) cos/4 a= 6003+ 560 3 2 (606) (580) (65 61 b 600 m/ 610 500 m 36161 300 - 606,000+ 0-48 71090 00. 48 D - 106 . 0 02 4 m

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