Question

The angles in the figure below form a straight angle.
Write an equation to represent the relationship between these angles.
aº100ºaº


+ + =

Answer 1

To represent the relationship between the angles in the figure, we can use the fact that the sum of the angles that form a straight angle is 180 degrees. Based on your description, the angles are \( a^\circ \), \( 100^\circ \), and \( a^\circ \).

Thus, you can write the equation as:

\[
a + 100 + a = 180
\]

This simplifies to:

\[
2a + 100 = 180
\]

This equation represents the relationship between the angles in the figure.