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3 July, 02:35

Kaylee found the surface area, in square inches of a rectangular prism by using this formula.

2 (5 * 3) + 2 (5 * 8) + 2 (3 * 8)

What is the surface area of the prism, in square inches?

158

238

40

85

+1
Answers (2)
  1. 3 July, 02:43
    0
    158 in^2

    Step-by-step explanation:

    To determine the surface area of a rectangular prism, the Equation is:

    Surface Area = (length x width + width x height + length height) x 2

    The surface area with:

    length of 2 (5 x 3), a width of 2 (5 x 8), a height of 2 (3 x 8)

    SA = 2 (15) = 30, SA = 2 (40) = 80, SA = 2 (24) = 48,

    SA = 30 + 80 + 48

    SA = 158 square units.

    SA = 2LW + 2LH + 2HW

    SA = 2 (5 x 3) + 2 (5 x 8) + 2 (3 x 8)

    SA = 2 (15) + 2 (40) + 2 (24)

    SA = 30 + 80 + 48

    SA = 158 in^2

    So, your answer is: 158 in^2
  2. 3 July, 02:59
    0
    The surface area is 158 sqr inches

    Step-by-step explanation:

    As Kaylee has already written the formula so we just solve it

    = 2 (5 * 3) + 2 (5 * 8) + 2 (3 * 8)

    = 2 (15) + 2 (40) + 2 (24)

    = 30 + 80 + 48

    = 158
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