The eucalyptus is the world's fastest growing tree. it grows an average of 2 1/2 centimeters every day. if a eucalyptus tree is 50 centimeters tall when it is planted, how tall will it be in 5 days?

∠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°