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Two congruent right-triangles, each with legs 5 and 4 units, are drawn on a grid and joined along their longest side to form a shape.
What is the total area of the joined shape?

Class 6Area on GridsMensuration
  • A20
  • B18
  • C22
  • D40

Step-by-Step Solution

Each triangle = square units. Two together = 10 + 10 = 20 square units (forms a rectangle ).
Answer: A) 20

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