Move point D or point E around.[br]What do you notice about the sum of the blue angles and the sum of the green angles?
They add up to 180 degrees.[br][br]The rule is:[br][b]Co-interior angles on parallel lines add to 180 degrees.[/b]
If [math]\angle[/math]BGH = 58.27[math]^\circ[/math] then what is [math]\angle[/math]DHG?
Use your knowledge of:[br]- Right angles.[br]- Supplementary angles.[br]- Complementary angles.[br]- Vertically opposite angles.[br]- Angles on parallel lines.[br][br]To complete these activities:[br]https://www.transum.org/Maths/Activity/Angle/Chase.asp[br]https://www.transum.org/Maths/Activity/Angle/Chase.asp?Level=2