What is the total surface area of a hemisphere whose diameter is 14√

1.	What is the total surface area of a hemisphere whose diameter is 14√3 ?1. 1276 cm22. 1386 cm23. 1496 cm24. 1606 cm2
Answer» Correct Answer - Option 2 : 1386 cm² Given :- Diameter = 14√3 Concept :- Radius = Diameter/2 Total surface area of sphere = 3πR² Where, π = (22/7) Calculation :- ⇒ Radius = (14√3)/2 = 7√3 ⇒ Total surface area = 3 × (22/7) × (7√3)² ⇒ Total surface area = 1386 cm² ∴ Total surface area = 1386 cm²

What is the total surface area of a hemisphere whose diameter is 14√3 ?1. 1276 cm22. 1386 cm23. 1496 cm24. 1606 cm2

Answer» Correct Answer - Option 2 : 1386 cm²

Given :-

Diameter = 14√3

Concept :-

Radius = Diameter/2

Total surface area of sphere = 3πR²

Where, π = (22/7)

Calculation :-

⇒ Radius = (14√3)/2 = 7√3

⇒ Total surface area = 3 × (22/7) × (7√3)²

⇒ Total surface area = 1386 cm²

∴ Total surface area = 1386 cm²

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What is the total surface area of a hemisphere whose diameter is 14√3 ?1. 1276 cm22. 1386 cm23. 1496 cm24. 1606 cm2

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