For the first question, we can use the fact that the circumference of a circle can be calculated using the formula:
C = 2πr
where C is the circumference of the circle and r is the radius of the circle. Since we are given the length of the segment drawn from the center of the circle to a point on the circle, which is equal to the radius of the circle, we can use the value of r as 3 inches. So, the circumference of the circle is:
C = 2πr = 2 × 3.14 × 3 inches ≈ 18.84 inches
Therefore, the answer is B. 18.84 inches.
For the second question, we can use the same formula:
C = 2πr
where C is the circumference of the circle and r is the radius of the circle. Since we are given the radius of the circle as 21 feet and we are asked to use 22/7 for π, we can substitute the values in the formula and calculate the circumference:
C = 2πr = 2 × 22/7 × 21 feet ≈ 132 feet
Therefore, the answer is A. 132 feet.