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Mathematics 11 Online
OpenStudy (anonymous):

The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. Side BC is a secant intersecting the circle at point X.

OpenStudy (anonymous):

OpenStudy (anonymous):

What is the measure of angle ACB? 32° 6° 24° 12°

OpenStudy (anonymous):

@CGGURUMANJUNATH isn't degree the measure of angles

OpenStudy (cggurumanjunath):

YES ,DEGREES IS THE MEASURE OF ANGLE.

OpenStudy (cggurumanjunath):

@ganeshie8

OpenStudy (cggurumanjunath):

@AravindG

OpenStudy (cggurumanjunath):

@Zarkon

OpenStudy (cggurumanjunath):

@texaschic101

OpenStudy (cggurumanjunath):

@lalaly

OpenStudy (rajat97):

cool question this can make heads spin but i'm trying:)

OpenStudy (anonymous):

yah

OpenStudy (rajat97):

got it!

OpenStudy (anonymous):

really how

OpenStudy (rajat97):

wait i think i'm missing some thing sorry but please be patient i'll get you on that in a few moments

OpenStudy (rajat97):

look it's related with the measure of the arc BA

OpenStudy (rajat97):

did you get any idea??

OpenStudy (anonymous):

not really

OpenStudy (rajat97):

what i did is: |dw:1388252886483:dw| by the cyclic quadrilateral theorem, the sum of the opposite angles=180 the measure of the arc is given so we can find out the measure of the remaining arc and by the theorem that the angle subtended by a chord on the centre is double of teh angle subtended by the chord on the circumference of the circle and most probably , i'm mistaken in calculating the measure of the remaining arc and i'm trying to do it:)

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