RRB NTPC (Graduate)22 Mar 2026Shift 1Mensuration 2D

Find the area of an equilateral triangle with side 8 cm (correct to 2 decimal places).

8 cm भुजा (Side) वाले समबाहु त्रिभुज (Equilateral triangle) का क्षेत्रफल (दशमलव (Decimal) के दो स्थानों तक सही मान) ज्ञात कीजिए।

Answer और ExplanationAnswer and explanation

Answer: (B) 27.71 sq. cm.

क्षेत्रफल (Area) = √34 × 8² = 16√3 ≈ 27.71 cm²
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क्षेत्रफल 27.71 cm² है।
Area = √34 × 8² = 16√3 ≈ 27.71 cm²
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The area is 27.71 cm².

Source: RRB NTPC (Graduate) · 22 Mar 2026 · Shift 1। Solution: Prashant Sir, Vijayastra।Source: RRB NTPC (Graduate) · 22 Mar 2026 · Shift 1. Solution by Prashant Sir, from Vijayastra.