CTET Paper 1 · Mathematics-CTET

The picture contains a grid of 5×5 unit-squares. Considering the top-left to be (0,0), the vertices of the shaded quadrilateral are (1,0), (5,3), (3,5) and (1,3). The side of each square is 1 cm. How many square cm is the area of ​​the shaded portion?

  1. 8
  2. 9
  3. 10
  4. 11
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