Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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  Independent Practice  

  • Question 5 (request help)

    A banner is made of a square and a semicircle. The square has side lengths of 26 inches. One side of the square is also the diameter of the semicircle. What is the total area of the banner? Use 3.14 for \(\text{π}\).

  •    \(\text{ in}^2\)
  • Question 6 (request help)

    Multistep

    Erin wants to carpet the floor of her closet. A floor plan of the closet is shown.

    a. How much carpet does Erin need?

  •    \(\text{ ft}^2\)
  • Question 6 (request help)

    b. The carpet Erin has chosen costs $2.50 per square foot. How much will it cost her to carpet the floor?

  • $    
  • Question 7 (request help)

    Multiple Representations

    Hexagon ABCDEF has vertices A(-2, 4), B(0, 4), C(2, 1), D(5, 1), E(5, -2), and F(-2, -2). Sketch the figure on a coordinate plane. What is the area of the hexagon?

  •    \(\text{ units}^2\)
  • Question 8 (request help)

    A field is shaped like the figure shown. What is the area of the field? Use 3.14 for \(\text{π}\).

  •    \(\text{ m}^2\)
  • Question 9 (request help)

    A bookmark is shaped like a rectangle with a semicircle attached at both ends. The rectangle is 12 cm long and 4 cm wide. The diameter of each semicircle is the width of the rectangle. What is the area of the bookmark? Use 3.14 for \(\text{π}\).

  •    \(\text{ cm}^2\)
  • Question 10 (request help)

    Multistep

    Alex is making 12 pennants for the school fair. The pattern he is using to make the pennants is shown in the figure. The fabric for the pennants costs $1.25 per square foot. How much will it cost Alex to make 12 pennants?

  • $    
  • Question 11 (request help)

    Reasoning

    A composite figure is formed by combining a square and a triangle. Its total area is \(32.5\text{ ft}^2\). The area of the triangle is \(7.5\text{ ft}^2\). What is the length of each side of the square? Explain.

  •    \(\text{ ft}\)

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