willcohen42
04.12.2019 •
Mathematics
Fast pls!
what is the measure of the indicated central angle?
a) 70 degrees
b) 80 degrees
c) 90 degrees
d) 110 degrees
e) none of the above
Solved
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Ответ:
Step-by-step explanation:
Given,
r=3
arc=3/2*pi
we know that,arc=theta(angle)*2*Pi*r/360
theta*2*pi*3/360=3*pi/2
pi and 3 cancel on both sides
theta*2/360=1/2
theta/180=2
theta=180/2
Hence theta or the angle required=90 degrees(option C)
Ответ:
ok
Step-by-step explanation: