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प्रश्न
Express the following in standard form:
Express 5 hectares in cm2 (1 hectare = 10000 m2)
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उत्तर
Given, 5 hec = 5 × 10000 m2 ...[∵ 1 hec = 10000 m2]
= 5 × 10000 × 100 × 100 cm2 ...[∵ 1 m = 100 cm]
Standard form of 5 × 10000 × 100 × 100 cm2
= 5 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10 ...[∵ am × an = (a)m + n]
= 5 × 108 cm2
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