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Leslie
Leslie asked in Science & MathematicsMathematics · 2 weeks ago

The tip of a windshield wiper travels a distance of 31 inches in one 90 degrees revolution.?

What is the length of the windshield wiper to the nearest inch? 

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  • Jeff Aaron
    Lv 7
    2 weeks ago
    Favorite Answer

    Circumference of entire circle: 31 * (360/90) = 124

    Divide by 2*pi to get radius: 62/pi =~ 19.735, round off to 20 inches

    NOTE: This is distance from the centre of the pivot point to the tip of the wiper, NOT from one end of the wiper blade to the other.

  • ?
    Lv 7
    2 weeks ago

    2 pi r = 124 inches, r ≈ 19.735 inches

    The length of the windshield wiper:

    20 inches (rounded to the nearest inch)

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