The length of a diagonal of a square of side 10 cm is

A. \(20\) cm

B. \(10\sqrt{3}\) cm

C. \(10\sqrt{2}\) cm

D. \(5\sqrt{2}\) cm

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

1 answer

Best answer

Answer: C. \(10\sqrt{2}\) cm

Diagonal \(= \sqrt{10^2 + 10^2} = 10\sqrt{2}\) cm.

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

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