Find the geometric mean between 18 and 7. Write your answer in radical form.
1 answer:
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Step-by-step explanation:
To solve this question I would use the sin rule.
The sin rule states that
Therefore if you substitute in your numbers you get:
If you rearrange that you get:
Therefore a = 17.3 Inches (to 3 sf)
This can also be done with basic trigonometry where you would get
Rearranging to
meaning the answer is 13.7 inches