Mathematics
Grade10
Easy

Question

What is the area of the shaded region?

  1. x2 – 16
  2. x2 + 16
  3. 4x + 24
  4. 16 - x2

The correct answer is: 16 - x2


    Area of shaded region = Area of bigger square – Area of smaller square
    = (x + 4)2 – x2
    = x2 + 8x + 16 – x2
    = 8x + 16

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