Find the length of arc DF given that m < DOF of circle O is 60° and OF = 15 ft. 60° 15 ft. 20.5 O 15 No Previous

A 45 foot tall telephone mast r feet from an observer subtends an angle of 1.75°.   Use the arc length formula to estimate r(the distance between the observer and the telephone mast) to the nearest foot.

A stair stringer can be laid out very accurately by a carpenter using the Pythagorean Theorem to calculate length L. If the stairs are to have a rise of 6-3/4" and a run of 11-1/4", calculate length L, rounded to the nearest 16th of an inch. ise un stringer The length L'is inches. 券

show me all the steps please