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Suppose the width of your index finger is 0.7 inches and the length of your arm is 32.2 inches. Based on these measurements, what will be the angular width (in degrees) of your index finder held at arm’s length? 

anyone know this?

 Jan 14, 2021
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tan Ø = .7 / 32.2    Ø= 1.25o

 Jan 14, 2021

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