axthomas0475
31.01.2020 •
Mathematics
Find the length of an arc of a 8inch radius circle if the arc measures 45 degrees
whoever answer correctly gets marked
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Ответ:
So the length of the arc would be 1/8 of a full circumference:
C = 2π r
C = 2π(8)
C = 16π
Take 1/8 of this:
1/8C = (1/8)16π = 2π
Exact answer --> 2π inches
(Approx. answer --> 6.28 inches)
Ответ:
6785.84
R squared = 144
144 x pi = 452.389342
Answer x height
452.389342 x 15 = 6785.84