allery5 cm कोर वाले घन का कुल पृष्ठीय क्षेत्रफल ज्ञात कीजिए।
A150 cm²
B100 cm²
C125 cm²
D25 cm²
Answer & Solution
Correct answer: A. 150 cm²
एक घन के छह वर्गाकार फलक होते हैं, इसलिए क्षेत्रफल 6 × 25 = 150 वर्ग सेंटीमीटर (cm²) है।
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