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OpenStudy (anonymous):
diagram
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OpenStudy (sirm3d):
triangle ACB is right triangle, because AB is diameter of the circle
OpenStudy (sirm3d):
triangle BAP is right triangle since PA is tangent to circle at A, and BA is a diameter
OpenStudy (sirm3d):
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OpenStudy (sirm3d):
angles CAP and B are congruent, because angle P is their complement. The two triangles CAP and APB are two right triangles the two triangles are similar by AA Postulate
OpenStudy (anonymous):
can u plse draw diagram
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OpenStudy (anonymous):
@sirm3d
OpenStudy (sirm3d):
|dw:1376580279827:dw|
OpenStudy (sirm3d):
right angles PAB (tangent line PA at A perpendicular to diameter) and ACB (hypotenuse of inscribed triangle in a circle is diameter of the circle)
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