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Mathematics 12 Online
OpenStudy (anonymous):

In circle W, find m

OpenStudy (anonymous):

|dw:1371573707629:dw|

OpenStudy (anonymous):

Hello

ganeshie8 (ganeshie8):

inscribed angle !

ganeshie8 (ganeshie8):

hi

OpenStudy (anonymous):

Let me show you the real picture

OpenStudy (anonymous):

I will attach it

ganeshie8 (ganeshie8):

okay

OpenStudy (anonymous):

OpenStudy (anonymous):

In circle W, find m<XYZ

ganeshie8 (ganeshie8):

ur drawing was also good :)

OpenStudy (anonymous):

haha thank you

ganeshie8 (ganeshie8):

|dw:1371573920749:dw|

ganeshie8 (ganeshie8):

you need to find that angles. that angle is called 'inscribed angle'

ganeshie8 (ganeshie8):

use this :- inscribed angle will be half of central angle.

OpenStudy (anonymous):

How do i find central angle?

ganeshie8 (ganeshie8):

|dw:1371574094933:dw|

ganeshie8 (ganeshie8):

thats central angle

OpenStudy (anonymous):

Okay so half of 68?

OpenStudy (anonymous):

is 34 the inscribed angle

ganeshie8 (ganeshie8):

Yes ! thats right !

OpenStudy (anonymous):

So the answer is 34?

OpenStudy (anonymous):

@ganeshie8 I need help for another problem

ganeshie8 (ganeshie8):

sure ask :)

OpenStudy (anonymous):

In circle Q, find m<VTS.

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

its a cyclic quadrilateral

ganeshie8 (ganeshie8):

use this :- opposite angles are supplementary in cyclic quadrilateral

OpenStudy (anonymous):

So what is the angle I measure?

ganeshie8 (ganeshie8):

<VTS + 60 = 180

OpenStudy (anonymous):

So 120 counts?

OpenStudy (anonymous):

120 + 60?

ganeshie8 (ganeshie8):

<VTS + 60 = 180 <VTS = 120

OpenStudy (anonymous):

Ok.

OpenStudy (anonymous):

@ganeshie8 In circle A find the mDB

OpenStudy (anonymous):

ganeshie8 (ganeshie8):

same as furst q. use inscribed angle formula

ganeshie8 (ganeshie8):

mDB = C x 2 = 71 x 2

OpenStudy (anonymous):

180-71 = ?

OpenStudy (anonymous):

Using that formula?

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