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10 cards from this deck
Any angle subtended by the diameter is a right angle.
A triangle inscribed in a circle with one side as a diameter.
Angle ACB is a right angle (909090 degrees).
Draw the circle and the inscribed triangle.
The angle in a semicircle is a right angle.
Angles subtended by a diameter are right angles.
Angles OCA and OCB subtend the same arc AB.
AOC+ABC=180AOC + ABC = 180AOC+ABC=180 degrees.
To solve problems involving circles and right triangles.
Check if AC2+BC2=AB2AC^2 + BC^2 = AB^2AC2+BC2=AB2.
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