#35. VOCABULARY Example 1: Estimating the Area of a Circle Estimate the area of the circle. Use 3 to approximate .

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Presentation transcript:

#35

VOCABULARY

Example 1: Estimating the Area of a Circle Estimate the area of the circle. Use 3 to approximate .

Example 2: Estimating the Area of a Circle Estimate the area of the circle. Use 3 to approximate .

Example 3 Estimate the area of the circle. Use 3 to approximate . 20 m

Example 4: Using the Formula for the Area of a Circle Find the area of the circle. Use for . 22 7

Example 5 Find the area of the circle. Use for  m

Example 6 Find the area of the circle. Use for  yd _

Example 7: Application A drum head has a radius of 18 in. Find the area of the material covering the drum head. use 3.14 for . 18 in.

Example 8 The figure shows the dimensions of a standard compact disc. What is the area of the hole in a compact disc? Use 3.14 for and round to the nearest tenth. π

Example 9 What is the area of the plastic that is used to make a compact disc? Round to the nearest square centimeter.

Example 10 A circular living room has a diameter of 16 ft. Carpeting for the room costs $2.25 per square foot. How much does it cost to put wall-to-wall carpeting in the room? Use 3.14 for π.