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Home > CC3 > Chapter 4 > Lesson 4.1.2 > Problem 4-21

4-21.

Kelso’s mom wants to put a floating blanket over the family’s circular wading pool to keep the heat in and the leaves out. The pool has a diameter of  feet. Homework Help ✎

  1. How many square feet of blanket will Kelso’s mother need?

    The formula to find the area of a circle is .

    sq ft

  2. If the pool supply store charges per square foot for the blanket, how much will the material for the blanket cost?

    Multiply your answer for part (a) by .