Question

In the diagram above 4=40 degree find the measure of 3 3=

Answer 1

`\begin{gathered} \angle4\text{ and }\angle2\text{ are equal since they are corresponding angles},\text{ hence }\angle2=40 \\ \text{Now, }\angle2+\angle3=180\text{ since they are supplementary angles},\text{ therefore} \\ 40+\angle3=180 \\ \angle3=180-40 \\ \angle3=140 \end{gathered}`