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ഒരു വൃത്തസ്തൂപികയുടെ ഉയരവും, ചരിഞ്ഞ ഉയരവും യഥാക്രമം 20 സെന്റിമീറ്ററും 25 സെന്റിമീറ്ററുമാണ്, വൃത്തസ്തൂപികയുടെ വ്യാപ്തം കണ്ടെത്തുക.

A1500π

B1200π

C1000π

D8000π

Answer:

A. 1500π

Read Explanation:

വൃത്തസ്തൂപികയുടെ വ്യാപ്തം = [1/3] πr²h l² = r² + h² 25² = r² + 20² 625 = r² + 400 r² = 625 – 400 r² = 225 r = 15 വൃത്തസ്തൂപികയുടെ വ്യാപ്തം = [1/3] × π × 15 × 15 × 20 = 1500π


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