Questions: Calculating circumference and Area of Circles Julian Ca: (2) What is the circumference of circle S? What is the area of circle S? Use 3.14 as π. Circumference of Circle S Diagram Label, Value, Units TS, 39, feet TR, 78, feet , , feet , , square feet

Solution Steps

• The diameter of Circle S (TR) is given as 78 feet.
• The radius of Circle S (TS) is given as 39 feet.

• The formula for the circumference of a circle is \( C = \pi \times d \), where \( d \) is the diameter.
• Using \( \pi = 3.14 \) and \( d = 78 \) feet: \[ C = 3.14 \times 78 = 244.92 \text{ feet} \]

• The formula for the area of a circle is \( A = \pi \times r^2 \), where \( r \) is the radius.
• Using \( \pi = 3.14 \) and \( r = 39 \) feet: \[ A = 3.14 \times 39^2 = 3.14 \times 1521 = 4775.94 \text{ square feet} \]

Final Answer