Trig in shapes
Trig in shapes
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1
Two friends sail their boats from the port
Barry sailed 2.7km on a bearing of 065.
Garry sailed 3.2km on a bearing of 125.
How far apart are they?
4 Marks
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2.981610 km
5 Marks
2
A laser weapon is being tested on a wall
Shot A is fired at an angle of 48.
Shot B is fired at an angle of 67.
Shot B hits the wall 18m higher as shown.
Calculate the distance, d between the weapon and wall.
5 Marks
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14.45m
3
Triangle JKL is shown
Calculate the size of angle LJK
3 Marks
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55.789 degrees
4
Calculate the area of this triangle
3 Marks
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75m2
5
In triangle PQR
Show that cos Q = 5/7
3 Marks
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314m³
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