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20 January, 22:05

1. Find the area and perimeter of the triangle.

16 cm

20.9 am

27 cm

+1
Answers (1)
  1. 21 January, 00:59
    0
    Perimeter = 63.9 cm.

    Area = 166.96 cm^2 to the nearest hundredth.

    Step-by-step explanation:

    The perimeter = 16+20.9+27 = 63.9 cm.

    To find the area you can use Heron's Formula.

    Area = √ [ s (s-a) (s-b) (s-c) ] where s = the semi-perimeter and a, b and c are the lengths of the 3 sides.

    s = 63.9 / 2 = 31.95.

    Area of the triangle = √ (31.95 (31.95-16) (31.95-20.9) (31.95-27) ]

    = 166.96 cm^2.
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