Digits, Grade 7, Volume 1, Homework Helper

### 4-5: TEKS Practice

• 1. An oval track is made by enclosing semicircles on each end of a 50 m-by-100 m rectangle. Find the area enclosed by the track. Use 3.14 for π.

• 2. The outside wall of a dollhouse has the shape of this polygon. What is the area of the polygon?

• 3. Find the area of the shaded region. Use 3.14 for π.

• 4.

• a. Show two ways that the polygon can be decomposed into simpler shapes.

• b. Explain how to use the simpler shapes to find the area of the figure.

• 5. The figure shows the outline of a new pier that is going to be built at the ocean.

• a. What is the area of the pier?

• b. Draw another figure that has the same area as the given figure.

• 6.

• a. Draw a polygon that is made up of squares, triangles, and parallelograms.

• b. Which of these formulas would you use to find the area of the polygon? Select all that apply.

• A. A = b + h

• B. A = bh

• C. eh equals , 1 half , b h

• D. A = s2

• E. eh equals , h over b

• F. eh equals , b over h

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