anonymous
  • anonymous
What is the measure of
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
Do i add up both sides and divide by 2 ??
ganeshie8
  • ganeshie8
yes, that gives you

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ganeshie8
  • ganeshie8
then we can do :
anonymous
  • anonymous
64 = 180 - 152
anonymous
  • anonymous
64 = 28
anonymous
  • anonymous
wait i did it wrong right ?
ganeshie8
  • ganeshie8
hey no wait
ganeshie8
  • ganeshie8
First step : find
anonymous
  • anonymous
108
anonymous
  • anonymous
?
ganeshie8
  • ganeshie8
Yes, we are not done yet.
ganeshie8
  • ganeshie8
Second step :
anonymous
  • anonymous
72
anonymous
  • anonymous
Why are their different ways to solving them if they are all circles ? - ___-
anonymous
  • anonymous
there *
ganeshie8
  • ganeshie8
Yes ! good question, this time they didnt ask the same angle
ganeshie8
  • ganeshie8
they asked
ganeshie8
  • ganeshie8
|dw:1370413653659:dw|
ganeshie8
  • ganeshie8
thats the given circle and arc measures, eh ?
ganeshie8
  • ganeshie8
we have a formula for the angle at the intersection
ganeshie8
  • ganeshie8
|dw:1370413764549:dw|
ganeshie8
  • ganeshie8
that angle equals, average of the intercepted arcs (64+152)/2 = 108
ganeshie8
  • ganeshie8
look at the q, did they ask us to find that angle ?
anonymous
  • anonymous
No they wanted the measure
anonymous
  • anonymous
Oh i get it !
anonymous
  • anonymous
This is my last question
anonymous
  • anonymous
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ganeshie8
  • ganeshie8
|dw:1370413924982:dw|
ganeshie8
  • ganeshie8
they wanted the measure of that angle. thats why we have to subtract wat we got from 180
anonymous
  • anonymous
That's where i would mess up
anonymous
  • anonymous
But now everything is clear
ganeshie8
  • ganeshie8
its okay, good :)
ganeshie8
  • ganeshie8
so they gave u the angle seen from a point outside = 39
ganeshie8
  • ganeshie8
they gave u the big arc = VW = 110
ganeshie8
  • ganeshie8
you need to find small arc XY
ganeshie8
  • ganeshie8
use the formula :- angle from a point outside = (big arc - small arc)/ 2 39 = (110-XY)/2 78 = 110 - XY XY = 110 - 78 = ?
anonymous
  • anonymous
32 is this the only way to solve these type of problems if theirs more can you just give me the expression form example. XY = 210 - 2
ganeshie8
  • ganeshie8
I get what you asking. But this is the only way. trust me, you do one more problem, you will become confident :)
anonymous
  • anonymous
You're the best G ! :D
ganeshie8
  • ganeshie8
oh ty... !:)

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