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80p=pr^2+p(2r)^2
80p=pr^2+4pr^2
80=r^2+4r^2
80=5r^2
16=r^2
r=4 for the smaller circle´s radius, and 8 is the larger circle´s radius.
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Angle x = arc tangent (7 / 24)
Angle x = arc tangent (
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0.291666666...)
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Answer:
43.7
Step-by-step explanation:
4 secs on was 78.4 meters, 5 was 122.5, 122.5-78.8=43.7
