Question

For the diagram below, if < 6 =141 °, what would be the measure of < 4 ?

Answer 1

From the information given,

angle 6 = 141

angle 5 = 180 - angle 6(Because they are on a straight line)

angle 5 = 180 - 141 = 39

angle 5 = angle 3(Alternate angles are congruent)

ang;e 3 = 39

angle 4 = 180 - 39(Because they are on a straight line)

angle 4 = 141 degrees