Box 7 Mathbits GeoCaching?

NetherCraft 0

I need help with box 7, all of the questions, on mathbits.

here is the url. mathbits.com/Caching/G64980.html

if you could provide some answers, i’d appreciate it

2 Answers

  • 1. First use the sine ratio to get the perpendicular height(PH):

    sin 30° = PH / 8

    PH = 8 sin 30°

    PH = 4

    Area = Base x PH

    Area = 18 x 4 = 72 square whatevers

    1. Area of cylinder = πr² H

    Area = π x 4² x 6 = 302 in³ [to the nearest in³]

    1. y = 2 is a line parallel to the x-axis and 2 units above the x-axis

    so the point (2, 4) is 2 units vertically above the line y = 2

    reflecting the point in the line y = 2 keeps the same x-coordinate … but the y-coordinate reduces by 4 units … from 2 units above to 2 units below the line y = 2 … so the coordinates of point P’ are (2, 0) … so answer (2)

    then you want |72 – 302|² = 52900

    and that takes you to #8 … here http://mathbits.com/Caching/G52900.html

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