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Home > INT2 > Chapter 12 > Lesson 12.2.4 > Problem 12-145

12-145.

A map of an island is shown at right. Each unit of length on the grid represents feet.

  1. Determine the actual dimensions of the island (the overall width and length).

    What is the overall width and length in square units?

    square units by square units
    Now solve for the actual dimensions of the island.

  2. Calculate the area of the shape at right and the actual area of the island.

    Use the answer to hint (a) to solve the first part of the question.

    area of island square feet

A shaded figure.  Draw right, 6, diagonally down 1 and right 1, down 3, left 2, down 2, right 3, down 3, left 6, diagonally up 2 and left 2, and up 7 to enclose the figure.