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28 May, 08:04

Find the approximate area of / CDE. A. 48.3 square units B. 59.8 square units C. 64.6 square units D. 75 square units

Triangle:

Line CE = 15

Line ED = 12

Line CD = 10

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Answers (1)
  1. 28 May, 11:01
    0
    B

    Step-by-step explanation:

    To calculate the area of this triangle we can use the Heron's formula

    Mathematically we have the Heron's formula as;

    A = √s (s-a) (s-b) (s-c)

    where s = (a + b + c) / 2

    Thus, s = (15 + 12 + 10) / 2 = 18.5

    a = 15, b = 12 and c = 10

    Plugging these values into the equation, we have

    √18.5 (18.5-15) (18.5-12) (18.5-10)

    = √18.5 (3.5) (6.5) (8.5)

    = √ 3,577.4375

    A = 59.8116

    which is approximately 59.8 square units
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