a) What angle in radians is subtended with an arc 1.40 m in length on the circumference of a circle of radius 2.30 m?
What is this angle in degrees?
b) An arc 11.0 cm in length on the circumference of a circle subtends an angle of 129°. What is the radius of the circle?
c) The angle among two radii of a circle with radius1.50 m is 0.600rad. What length of arc is intercepted on the circumference of the circle with the two radii?