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A triangular sail has corners at (0,0), (6,8) and (10,0) on a design grid (1 unit = 1 cm).
What is the area of cloth needed in square cm?

Class 10Area of a Triangle (Coordinates)Geometry — Coordinates
  • A36
  • B44
  • C80
  • D40

Step-by-Step Solution

Base from (0,0) to (10,0) = 10, height -coordinate of apex). Area = sq cm.
Answer: D) 40

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