An athlete trains for 75 mins each day for as many days as possible write an equation that relates the number of days d that the athlete spends training when the athlete trains for 375 mins

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.