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The minute hand of a watch is 1.5 cm long. How far does its tip move in 40 minutes ? (use āˆ=3.14)

A4.71 cm

B6.28 cm

C9.42 cm

D3.14 cm

Answer:

B. 6.28 cm

Read Explanation:

r = 1.5 cm šš¹ = 240° = āˆ/180 x 240 = 4āˆ/3 l= ršš¹ = 1.5 x 4āˆ/3 =6.28 cm


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