Look at the following diagram.
Angle a° = 58° because it is alternate to the 58° on parallel lines (Z or S shape)
Angle b° = 48° because it is alternate to the 48° on parallel lines (Z or S shape)
Angle c° = 180° - 48° - 58° = 74° for two reasons.....angles in a triangle add up to 180° and angles on a straight line add up to 180°
Angle d° = 180° - 58° = 122° because angles on a straight line add up to 180°
View the activity introduction for more information on the topic
Read the question aloud
Open the accessibility toolbar to change fonts and contrast, choose a different language, use a ruler and more
Question
Do you want to skip questions and finish?
Hold up, it looks like there may be an issue with your spelling. Why not try it again?
You need to check your answer before you proceed. Are you sure you want to skip?
Teacher explanation