A boat travels 80 miles each way downstream and
back. The total trip took 15 hours. If the boat travels
at 12 miles per hour in still water, what is the speed
of the current in miles per hour? Use rational
equations to solve this problem.

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

The anwser cause i do not understand just plez