The answer is the 3rd option
30-60-90 triangle for reference
Remember soh cah toa
O:opposite, a:adjacent, h:hypotenuse
S:sin c:cosine t:tangent
Hope this helped :)
Answer:
radius=7.5, diameter=13
Step-by-step explanation:
diameter is the length across a circle through the middle, and it is given in the picture. radius is half of the diameter

we can rewrite it as

we can see that 1/4 is in multiple in both terms
so, we can factor it out
so, we get
..............Answer
Answer:
I think the answer is 19
Step-by-step explanation:
The answer is: [D]: " C = 2 π r " .
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