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14 April, 16:22

All the dimensions of a triangle were multiple by the same factor. If the base of the triangle went from 1 centimeter to 3 centimeters, the area of the triangle was multiple by what?

6

3

9

12

+3
Answers (1)
  1. 14 April, 16:47
    0
    the area is multiplied by 9.

    Step by Step Explanation:

    Let x be the base

    Let y be the height

    Since all dimensions were multiplied by the same number, 3,

    Original area,

    1/2 * x * y = (1/2) xy

    New area,

    1/2 * 3x * 3y = (1/2) (9) xy

    Hence, area is multiplied 9 times.
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