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Home > MC1 > Chapter 9 > Lesson 9.3.2 > Problem 9-138


Find the area of each of the circles described below. Express your answers accurately to the nearest hundredth.

  1. A circular mirror with a radius of centimeters.

    Remember that a circle's area is equal to , where is the radius.

    sq cm.

  2. A circular dinner plate with a diameter of inches. (Start by finding the radius.)

    The radius is equal to half the diameter. Remember to check your work.