Page 124 - Math SL HB Sem 1

CIRCULAR FUNCTIONS AND TRIGONOMETRY

Example 2: AB, of length 5 cm, and AC, of length 11 cm, are two chords of
a circle with centre 0 and radius 9 cm. Find the angles BAO
and CAO and hence calculate the area ofthe triangle ABC

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Example 3: A triangle has sides of length 10 cm and I I cm and an area of
2
50cm . Shorv that the included angle may take two different
possible sizes.

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