Find the angle subtended by a coin of radius 1 cm held at a distance 80 cm from your eyes. (answer should be 1.43°)
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Answer:
1.43 °
Explanation:
the angle subtended by a coin of radius 1 cm held at a distance 80 cm from your eyes.
= 2 * Tan⁻¹( Radius of coin / Coin Distnce from eye)
= 2 * Tan⁻¹ ( 1 / 80)
= 2 * Tan⁻1(0.0125)
= 2 * 0.716
= 1.432
= 1.43 °
the angle subtended by a coin of radius 1 cm held at a distance 80 cm from eyes = 1.43 °
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