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

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asked Jul 17, 2019 115k views

1 Answer

GrepLines · Answer 1 · 2019-07-22T01:55:48+0000

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

A triangle has sidesof length 12cm 16cm and 21 cm determine the 3 angles contained-example-1

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

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