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A triangle and a parallelogram stand on the same base and between the same parallels. If the area of the parallelogram is , the area of the triangle is (in ):

Competition practiceAreas & Volumes
  • A22
  • B18
  • C20
  • D40

Step-by-Step Solution

A triangle on the same base and between the same parallels as a parallelogram has half its area, so area = ½ .
Answer: C) 20

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