A chord in a circle of radius 10 cm is located 6 cm from the center. What is the total length of the chord?
Answer and explanation
Correct answer: B. 16 cm
- Step 1: Half-chord length = sqrt(r^2 - d^2) = sqrt(10^2 - 6^2) = sqrt(64) = 8 cm. Step 2. Full chord = 2 8 = 16 cm. Answer: 16 cm. Why not the others:* 8 cm is only the half-chord.
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