Two circles of radii 7 cm and 3 cm touch each other internally. The distance between their centres is

A. 10 cm

B. 21 cm

C. 4 cm

D. 5 cm

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

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Best answer

Answer: C. 4 cm

For circles touching internally, the distance between the centres is the difference of the radii: \(7 - 3 = 4\) cm.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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