In a triangle, , and the side opposite is 8 cm. Find the side opposite , to 1 decimal place.
Answer and explanation
Correct answer: C. 11.3 cm
- Step 1: Sine rule: .
- Step 2: cm.
Answer
11.3 cm.
Why not the others: 5.7 cm: the sine ratio was inverted. 12.6 cm: the sine of was used instead of . 8.9 cm: the calculator was in radian mode.
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