Question

Find the perimeter of a quadrilateral with vertices at C (-1,2), D (-2,-1), E (2,-2), and F (1,1). Round to the nearest hundredth when necessary.
A.) 10.92
B.) 12.68
C.) 13.43
D.) 18.27

Answer 1

To answer, find the distance from point C to D, point D to E, point E to F, and point F to C. The formula for the distance is,
                                     d = sqrt ((x2 - x1)² + (y2 - y1)²)
  Point C to D                d1 = sqrt ((-3 - -2)² + (1 - 4)²) = 3.16 units
  Point D to E                d2 = sqrt ((1 - -3)² + (0 - 1)²) = 4.12 units
  Point E to F                 d3 = sqrt ((-1 - 1)² + (2 - 0)²) = 2.83 units
  Point F to C                 d4 = sqrt ((-1 - -2)² + (2 - 4)²) = 2.23 units 
Then, add up all the distances and the answer is 12.34 units. The closest answer is letter D.  Credit:Meerkat

Answer 2

Answer:

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Step-by-step explanation: