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Kobotan [32]
3 years ago
7

A triangle has sidesof length 12cm 16cm and 21 cm determine the 3 angles contained in a triangle

Physics
1 answer:
Deffense [45]3 years ago
3 0
Angles will probably be 96° 35° and 49°
I tried to explain it with the working out, just re arrange the cosine rule for angles instead of side lengths.
if you need it explaining at all just message me :)
hoped it helped

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