HannaaLovee
AC is tangent to circle O at A. If mBY=24 , what is m<YAC? (The figure is not drawn to scale.)
A. 132
B. 48
C. 78
D. 156



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HannaaLovee
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HannaaLovee
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btw this is what the top part should look like..


HannaaLovee
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thank you ! :)

HannaaLovee
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i looked at it , but its a bit confusing though.

HannaaLovee
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well after looking at the other problem , that eliminates A and D so its between B and C

RadEn
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so, which one is the true

HannaaLovee
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im not sure i got 66 when i did what they said so i ave no clue now

HannaaLovee
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*have

HannaaLovee
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i believe it is answer choice B

RadEn
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like they said, u have to find the measure of m<YAB first.... then use complement angles property

RadEn
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what's m<YAB ?

HannaaLovee
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they never did mention anything about YAB only BAC , BAY and YAC

HannaaLovee
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nevermind blonde moment its 24?

RadEn
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1/2 * 24 = ...

HannaaLovee
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okay,12

RadEn
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good,
now m<YAB+m<YAC=90 degrees (complementary angels)
12 + m<YAC = 90
m<YAC = ...

HannaaLovee
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ahh.. 78 :)

RadEn
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yeah... :)

HannaaLovee
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and thanks again as always , lol :)

RadEn
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welcome