Given:
Two runways are parallel and a taxi way crosses both runways.
[tex]D8=127[/tex]
Required:
We need to find the sum of the measures of D1 and D4.
Explanation:
We know that D8 and D4 are corresponding angles.
Recall that corresponding angles are congruent.
[tex]D8=D4[/tex]
Substitute D8=127 in the equation.
[tex]D4=127[/tex]
We know that D8 and D1 are alternate exterior angles.
Recall that alternate exterior angles are congruent.
[tex]D8=D1[/tex]
Substitute D8=127 in the equation.
[tex]D1=127[/tex]
Add D1 and D4.
[tex]D1+D4=127+127[/tex][tex]D1+D4=254[/tex]
Final answer:
[tex]D1+D4=254[/tex]
