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trigonometry - Coggle Diagram
trigonometry
sohcahtoa - lengths
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x = the angle, use the side length and angle, then rearrange to figure out other side length
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pythagoras
labelling sides - longest side is h, side with right angle and angle is a, other side is o.
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pythagoras' theorum
a^2 + b^2 = c^2
a and b = adjacent or opposite, c = hypoteneuse
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exact trig ratios
you must know the exact values of sin, cos and tan for 0°, 30°, 45°, 60° and 90°
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sohcahtoa - angles
for angles, use the same ratios as the ones to calculate lengths, then use the inverse of sin, cos or tan to find the angle
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substitute numbers in, then use the inverse
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