One day, a person went to a horse racing area. instead of counting the number of humans an horses, he conuted 74 heads and 196 legs. how many humans and horses were there? a. 37 humans and 98 horses b. 24 horses and 50 humans c. 31 horses and 74 humans d. 24 humans and 50 horses

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

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: