Question

If the diameter of a circle is 6 inches, how long is the arc subtended by an angle measuring 70°?

Answer 1

a/(2πd/2)=70/360

a/(πd)=7/36

a=7πd/36 and d=6 so

a=42π/36

a=7π/6 inches

a≈3.67 inches (to nearest hundredth of an inch)