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10 questions from this quiz
Land shaped like a polygon
Length of radial lines & angles between
Origin (central reference point)
GPS device
Centre, boundary, or outside land
Divide into triangles, sum their areas
A=12×a×b×sinCA = \frac{1}{2} \times a \times b \times \sin CA=21×a×b×sinC
Cosine rule
Clockwise from north
Subtract from 360°360°360°
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