Page 124 - Math SL HB Sem 1

CIRCT-]LAR FTINCTIONS AND'I-RIGONOMETRY

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

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

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