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Home > INT2 > Chapter 3 > Lesson 3.1.1 > Problem 3-9

3-9.

Each pair of polygons below is similar. Review what you have learned about similarity as you solve for .

  1. 2 rectangles, labeled as follows: Smaller: width, 2, length, 6. Larger, width 4, length, x.

    Ratios of corresponding sides are equal in similar figures.

  1. Two six sided figures, labeled as follows: Larger: side between right angles, x minus 5, opposite side, 4. Smaller: side between right angles, 6, opposite side, 3.

    One figure has been rotated, so the and are corresponding sides.

  1. 2 rectangles, labeled as follows: Smaller: width, 3, length, x. Larger: length, 21, perimeter = 60.

    If the perimeter of the right rectangle is , what is the width?

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