∆TRI is inscribed in circle P whose diameter is 24 inches, and m∠I
= 60°.
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Find RT, in inches. Round to the nearest hundredth, if necessary.
12
16.97
20.78
24
To find RT, we first need to find the radius of circle P. Since the diameter is 24 inches, the radius is half of that, which is 12 inches.
Next, because ∆TR is an equilateral triangle (all angles are 60 degrees), each side is the same length.
Since RT is a radius of circle P, RT is also 12 inches.
Therefore, RT is 12 inches.
The closest answer choice is 12 inches.