The perimeter of a quarter circle is 10.71 meters. What is the quarter circle's radius?Use π≈3.14 and round your answer to the nearest hundredth.____ meters
Q. The perimeter of a quarter circle is 10.71 meters. What is the quarter circle's radius?Use π≈3.14 and round your answer to the nearest hundredth.____ meters
Identify Formula: Identify the formula for the perimeter of a quarter circle, which includes the curved part and two radius lines. The formula for the full circle's circumference is 2πr, so for a quarter circle, the curved part is 41×2πr=2πr. Adding two radius lines, the total perimeter P is 2πr+2r.
Set Up Equation: Set up the equation with the given perimeter:2πr+2r=10.71Substitute π≈3.14 into the equation:23.14r+2r=10.71
Combine Like Terms: Combine like terms:23.14r+2r=10.71(23.14+2)r=10.71(1.57+2)r=10.713.57r=10.71
Solve for r: Solve for r:r=3.5710.71r≈3.00 meters