On a piece of paper, use a protractor to construct a triangle with angle measures of 30° and 50º.

what is the measure of the third angle?

60°

80°

100°

180°

The third option, 100*

making it an abtuse triangle

If incorrect, sorry

It is 100º

Step-by-step explanation:

K12 :)

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

a

step-by-step explanation: