Mathematics

Question

A triangle is 20 in tall and 5 in wide. If it is
reduced to a width of 1 in then how tall will
it be?

1 Answer

  • Answer:

    The triangle should be 4 inches tall

    Step-by-step explanation:

    We can write a proportion to solve.  Put the height over the width

    20           x

    ------- = -----------

    5              1

    Using cross products

    20*1 = 5*x

    20 = 5x

    Divide by 5

    20/5 = 5x/5

    4 =x

    The triangle should be 4 inches tall

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