North 170 m NOT TO SCALE 330 180m 220 m The diagram shows five straight footpaths in a park. AB = 220m, AC = 180m and AD = 170m. %3D %3D Angle ACB = 90° and angle DAC = 33°. %3D
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
The diagram shows five straight footpaths in a park.
AB = 220m, AC = 180m and AD = 170m.
Calculate BC
Calculate DC
The bearing of D from A is 047 degrees. Calculate the bearing of B from A.
Calculate the area of the quadrilateral ABCD
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