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avatar+1898 

A central angle of a circle whose radius is 14 centimeters subtends an arc whose length is  7π15 centimeters.

What is the radian measure of the central angle?

π/72

π/60

π/36

π/30

 

i think its pi/30 ?

 Apr 16, 2020
 #1
avatar+44 
0

pi/30

 Apr 16, 2020
 #2
avatar+23557 
+2

I think you meant    7pi /15    rahter than   7 pi 15 ?

 

Total circle circumference would be     pi d  =   28 pi

 

this arc is a fraction of the total

 

7 pi/15   /   28 pi      x  2pi   =   pi/30 R

 Apr 16, 2020
 #3
avatar+1898 
+1

yes that is what i mean , sorry! but okay great i got it right thank you for explaining~

jjennylove  Apr 16, 2020

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