Mathematics
Grade6
Easy

Question

Find the area of the rectangle whose coordinates are as follows

  1. 35 sq. units    
  2. 120 sq. units    
  3. 407 sq. units    
  4. 128 sq. units    

The correct answer is: 35 sq. units


    Coordinates of A, B, C, D are (2, 3), (5, 3), (5, -4), (2, -4) respectively.
    Length of AB = open vertical bar 5 close vertical bar minus open vertical bar 2 close vertical bar
    = 5 - 2
    = 3
    Length of BC = open vertical bar negative 4 close vertical bar plus open vertical bar 3 close vertical bar
    = 4 + 3
    = 7
    So, area = Length × Breadth
    = 5 × 7
    = 35 sq. units

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