If a central angle is very small there is little difference in the length between an arc and the inscribed chord See the figure to the right Assume that the mast of a boat is 33 0 ft high If it subtends an angle of 4 19 how far away is it Note When a central angle intercepts an arc the arc is said to subtend the angle ft away ound until the final answer Then round to the nearest foot as needed The mast is Inseri bed