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10 questions from this quiz
90∘90^\circ90∘
Angle in a semicircle
The side opposite the right angle
OA=OB=OC=rOA = OB = OC = rOA=OB=OC=r
∠AOC=2×∠ACB\angle AOC = 2 \times \angle ACB∠AOC=2×∠ACB
A right triangle
Check if AC2+BC2=AB2AC^2 + BC^2 = AB^2AC2+BC2=AB2
100100100
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