The klm that is measured at 220° is a reflex angle. The opposite angle is obtuse. Find the measure of obtuse klm

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *