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Wednesday, February 13, 2013

Trigonometry Quiz

Give answers which are lengths correct to three significant figures.  Give answers in degrees correct to one decimal place.                                        
1. In the right-angled triangle MNO,   MO = 4.5 metres and angle MON = 32o.  Calculate the length of MN.                                    

2.            GHI is a right triangle.  GH  = 8 cm and HI = 7 cm.   Angle H = 90°. Calculate the size of angle HIG.    


3.   UVWX is a dart. 

a) Calculate the length of side UV.          nnnnnnnnnnnnnnnnnnnnnnnnnnnnnn                                                                                                             
b) Calculate the size of angle UXW.                                                                                                                                                                    
4. Square-based pyramid PQRST is shown in the diagram below.  All the edges are 3 cm in length.

a) Calculate the length of PR.                                                                                                                                                                                                                                                                                                               
b) Calculate the vertical height, MT.                                                                                                                                                                                                                        
c) Calculate the angle between PT and the base PQRS.                                                                                                                                                                                       

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