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zoejacobs2002
29.01.2021 •
Mathematics
MAJOR GRADE TEST I NEED NUMBER 2
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Ответ:
Uh, what is the question?
Ответ:
Let
rA> radius of the circle A
rB> radius of the circle B
LA> the length of the intercepted arc for circle A
LB> the length of the intercepted arc for circle B
we have that
rA/rB=2/3> rB/rA=3/2
LA=(3/4)π
we know that
if Both circle A and circle B have a central angle , the ratio of the radius of circle A to the radius of circle B is equals to the ratio of the length of circle A to the length of circle B
rA/rB=LA/LB> LB=LA*rB/rA> [(3/4)π*3/2]> 9/8π
the answer is
the length of the intercepted arc for circle B is 9/8π