A wall clock has a circumference of 31.4 inches. What is the area of the clock? (Use 3.14 for pi)(2 points)
Responses
157 square inches
157 square inches
62.8 square inches
62.8 square inches
15.7 square inches
15.7 square inches
78.5 square inches
78.5 square inches
To find the area of the clock, we can use the formula A = πr^2, where r is the radius of the clock. The circumference of the clock is equal to 2πr, so r = circumference / 2π = 31.4 / (2 * 3.14) = 31.4 / 6.28 = 5 inches.
Now, we can calculate the area: A = π(5)^2 = 3.14 * 25 = 78.5 square inches.