Mathematics
Grade9
Easy

Question

Find AB, if the area of the triangle ABC is 48 square m. and the height CD is 12 m.  (Unit = m)

  1. 8
  2. 4
  3. 6
  4. 2

The correct answer is: 8


    Area of triangle = 4 sq m.
    Height of triangle = 12 m.
    Base of triangle = AB = ?
    We know that area of triangle = ½ x base x height
    48= ½ x AB x 12
    48 x 2 /12 = AB
    8 = AB
    Therefore, AB = 8 m.

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