Answer:
C. 10 : 16
Step-by-step explanation:
Attached below
Answer:
The answer is 
Step-by-step explanation:
We have to:

So, if we take the 60 degree angle of the smallest triangle, we have to:

We do not know x. But if we take the sine of the angle of 30 degrees and the main triangle we have:

Then:



Step-by-step explanation:
Since,
1 inch=2.5 cm
Therefore,
5.2 inches=2.5×5.2 cm=13 cm
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50 is the value cause 20 is 40 of the percent, 20+20 is 40 now you made it into 80%.20% is remaining so add 10.
Answer:
C. 53 in.^2
Step-by-step explanation: