4. What is the circumference of a hubcap with a diameter of 10 inches? 5. Charles built a round table with a diameter of \( 3 \frac{1}{2} \) feet. He wants to put metal stripping around the edge of the table. How many feet of stripping must he buy? 6. If the stripping for problem 5 costs \( \$ 1.18 \) a foot, how much will Charles pay for the stripping to go around his table? 7. How many inches of wood are needed to make a frame for a circular mirror with a diameter of 28 inches? 8. How much fringe would be needed to trim a lampshade that has a diameter of 14 inches? 9. How much fencing is needed to go around a circular pool that has a diameter of 30 feet?
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Step 1: Identify the formula for the circumference of a circle, which is \( C = \pi \times d \), where \( d \) is the diameter. Show more…
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Use your calculator value of $\pi$ unless otherwise stated. Round answers to two decimal places. The carpet in the circular entryway of a church needs to be replaced. The diameter of the circular region to be carpeted is $18 \mathrm{ft}$. a) What length (in feet) of a metal protective strip is needed to bind the circumference of the carpet? b) If the metal strips are sold in lengths of 6 ft, how many will be needed?
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Identify each measurement as the diameter, radius, or circumference of the circular object. Then, estimate the other two measurements for the circle. a. The length of the minute hand on a clock is $5 \mathrm{in}$. b. The distance across a sink drain is $3.8 \mathrm{~cm}$. c. The tires on a mining truck are $14 \mathrm{ft}$ tall. d. The fence around a circular pool is $75 \mathrm{ft}$ long. e. The distance from the tip of a slice of pizza to the crust is 7 in. f. Breaking a cookie in half creates a straight side $10 \mathrm{~cm}$ long. g. The length of the metal rim around a glass lens is $190 \mathrm{~mm}$. h. From the center to the edge of a DVD measures $60 \mathrm{~mm}$.
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