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Mathematics 10 Online
OpenStudy (anonymous):

In circle A shown below, Segment BD is a diameter and the measure of Arc CB is 54°.

OpenStudy (anonymous):

OpenStudy (anonymous):

What is the measure of ∡DBC? 54° 36° 27° 63

ganeshie8 (ganeshie8):

find Arc CD

ganeshie8 (ganeshie8):

∡DBC = Arc CD / 2

OpenStudy (anonymous):

@ganeshie8 how do I find it

OpenStudy (anonymous):

CD Arc

ganeshie8 (ganeshie8):

CD Arc + CB Arc = 180 CD Arc + 54 = 180 CD Arc = ?

OpenStudy (anonymous):

126

ganeshie8 (ganeshie8):

Yes ! take half of that, cuz inscribed angle = half of central angle

ganeshie8 (ganeshie8):

<DBC = CD/2 = 126/2 = ?

OpenStudy (anonymous):

63

ganeshie8 (ganeshie8):

correct

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