एक घड़ी की 14 सेमी लंबाई वाली मिनट की सुई द्वारा 5 मिनट में रचित क्षेत्रफल ज्ञात कीजिए।
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Answer:
area of sector =¤÷360°×πr²
¤=5 min = 30°
r = 14 cm
area of sector = 30°/360° ×22/7 × (14)²
area of sector = 154/3 = 51.33cm²
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