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ExtremeBDS [4]
3 years ago
6

Suppose that circles R and S have a central angle measuring 125°. Additionally, circle R has a radius of 2 3 feet and the radius

of circle S is 3 4 feet. If the length of the intercepted arc for circle R is 4 9 π feet, what is the length of the intercepted arc for circle S?
A)
2π feet


B)
5
8
π feet


C)
3
2
π feet


D)
1
2
π feet
Mathematics
2 answers:
Dima020 [189]3 years ago
7 0

Answer:

1

2

π feet

Step-by-step explanation:

4

9

π

x

=  

2

3

3

4

x =  

1

2

π

When circles have the same central angle measure, the ratio of the lengths of the intercepted arcs is the same as the ratio of the radii.

pogonyaev3 years ago
3 0
Let
rR--------> radius of the circle R
rS-------> radius of the circle S
LR------> the length of the intercepted arc for circle R
LS------> the length of the intercepted arc for circle S

we have that
rR=2/3 ft
rS=3/4 ft
rR/rS=8/9--------> rS/rR=9/8
LR=(4/9)π ft

we know thatif Both circle R and circle S have a central angle , the ratio of the radius of circle R to the radius of circle S is equals to the ratio of the length of circle R to the length of circle S

rR/rS=LR/LS--------> LS=LR*rS/rR-----> [(4/9)π*9/8]----> (1/2)π ft

the answer is
the length of the intercepted arc for circle S is  (1/2)π ft
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