Question

Find c. Round to the nearest tenth:

Answer 1

9.7cm is the required answer

Explanation:

Answer 2

9.7 cm

Explanation:

Using the sine rule as attached in the question and relating only two parts then

`\frac {sin\ A}{a}=\frac {sin\ C}{c}` making c the subject of the formula then
`c=\frac {a sin\ C}{sin\ A}` Substituting 8cm for a, 55 degrees for A and 82 degrees for C then

`c=\frac {8 sin\ 82^(\circ)}{sin\ 55^(\circ)}=9.671153\ cm\approx 9.7\ cm`