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A player runs around a circular track of radius 10 meters. What is the circumfer
Practice Questions
Q1
A player runs around a circular track of radius 10 meters. What is the circumference of the track? (2022)
62.83 m
31.42 m
20 m
40 m
Questions & Step-by-Step Solutions
A player runs around a circular track of radius 10 meters. What is the circumference of the track? (2022)
Steps
Concepts
Step 1: Identify the formula for the circumference of a circle, which is Circumference = 2 * π * radius.
Step 2: Find the radius of the circular track, which is given as 10 meters.
Step 3: Substitute the radius into the formula: Circumference = 2 * π * 10.
Step 4: Calculate the multiplication: 2 * 10 = 20.
Step 5: Now multiply by π (approximately 3.14): 20 * π = 20 * 3.14.
Step 6: Calculate the final result: 20 * 3.14 = 62.8 meters (rounded to two decimal places).
Circumference of a Circle
– The circumference is the distance around a circle, calculated using the formula C = 2 * π * r, where r is the radius.
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