KnightRider
  • KnightRider
how to find angle b/w two vertex in a circle????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
u have picture?
KnightRider
  • KnightRider
wait
anonymous
  • anonymous
what do u mean by vertex in a circle?

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anonymous
  • anonymous
yeah..a picture might help
anonymous
  • anonymous
?
KnightRider
  • KnightRider
i'm trying to find a picture pls w8 for couple of more mis
anonymous
  • anonymous
I be back, the angles depen
KnightRider
  • KnightRider
here is the pic
1 Attachment
KnightRider
  • KnightRider
angle b/w A and B
anonymous
  • anonymous
what w?
anonymous
  • anonymous
between A and B?
KnightRider
  • KnightRider
yeah
anonymous
  • anonymous
A and B are the points on a circle, u can find the central angle of the arecAB
anonymous
  • anonymous
arc AB*
anonymous
  • anonymous
just 90 degrees lol
anonymous
  • anonymous
why make it complicated
anonymous
  • anonymous
well, the figure is drawn roughly, may not b perpendicular
KnightRider
  • KnightRider
how to find the central angle
anonymous
  • anonymous
>>
anonymous
  • anonymous
u need more info, the radius and the length of arc
anonymous
  • anonymous
\[r=l \theta\]
anonymous
  • anonymous
\[l=r \theta\]
anonymous
  • anonymous
arc length=radius * central angle
anonymous
  • anonymous
A B is 90 degree then the central angle is the same
anonymous
  • anonymous
yeh, thats prob it , im not paying much attention tonight
anonymous
  • anonymous
the angle on the circle is 1/2 angles in center
KnightRider
  • KnightRider
radius is 50 mm and length is 78.5 mm but i'm getting 1.57 deg
anonymous
  • anonymous
the answer you get is in radians
anonymous
  • anonymous
78.5/50
anonymous
  • anonymous
if you are using l =r theta
anonymous
  • anonymous
pi radians = 180 degrees , therefore 1 radian = 180 / pi degrees
anonymous
  • anonymous
which works out as 90degrees exactly
anonymous
  • anonymous
so I was right from the start :P
anonymous
  • anonymous
how come?
anonymous
  • anonymous
what do u mean how come, I was right
anonymous
  • anonymous
right if the lines are perpendicular,
anonymous
  • anonymous
well, it turns out they are :P
anonymous
  • anonymous
yes, the seem to be :)
anonymous
  • anonymous
but actually the qs is to find the angle b/w A n B
anonymous
  • anonymous
your point?
anonymous
  • anonymous
angle is 90 , done
anonymous
  • anonymous
angle is 90 , done
anonymous
  • anonymous
conditiionally done ;)

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