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Mathematics 16 Online
OpenStudy (crashonce):

In the figure, AB is a diameter of the circle. Angle A = 40 and angle T = 35. find angle PCB

OpenStudy (crashonce):

|dw:1419923379081:dw|

OpenStudy (mathmath333):

where is \(T\)

OpenStudy (crashonce):

its cut off on the right side

OpenStudy (crashonce):

|dw:1419923604370:dw|

hartnn (hartnn):

|dw:1419923923165:dw| just writing what all we can find using just the fact that sum of angles in a triangle = 180

hartnn (hartnn):

if the Center of the circle be R can we say RB=RC any theorem for that? :P

hartnn (hartnn):

Center of circle is O the intersection of those chords be R ***

OpenStudy (crashonce):

o angle ACB is 90 lol that means angle pcb is 15

hartnn (hartnn):

how is ACB = 90 ?

OpenStudy (crashonce):

right angle in semicircle aabc

hartnn (hartnn):

good catch! so yeah, PCB = 15 :)

OpenStudy (mathmath333):

good lol

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