Let D = {4,7,9}, E = {4,6,7,8} and F = {3,5,6,7,9}. List the elements in the set D U E. D U E =

D U E  =  { 4, 6, 7, 8, 9}

Step-by-step explanation:

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value