alleryAB is a diameter, C another circle point; AC=5,BC=12 cm. Circle radius?
A8.5 cm
B7 cm
C13 cm
D6.5 cm
Answer & Solution
Correct answer: D. 6.5 cm
Angle ACB is right, so diameter AB=√(5²+12²)=13 cm and radius is 6.5 cm.
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