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Circles
RD Sharma
CBSE
Grade 10

Question:

Distance between two parallel tangents of a circle of radius $4\text{ cm}$ is:
(a) $8\text{ cm}$
(b) $4\text{ cm}$
(c) $16\text{ cm}$
(d) $2\text{ cm}$

Step-by-Step Solution

Key Concept: Distance between parallel tangents $= 2r = 2 \times 4 = 8\text{ cm}$.
$d = 2r = 2 \times 4 = 8\text{ cm}$. [1.0 Mark]

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🎯 Official CBSE Marking Scheme:
Evaluating distance $= 8\text{ cm}$: 1.0 Mark

Correct Answer: $8\text{ cm}$
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