angle REC and angle BIG are added togehter to create 180 degrees, what is the reson for this?
angle REC and angle BIG added together equal 180 degrees, what is the reson (postulate, definition, or theorem) for this?
angle REC and angle BIG added together equal 180 degrees, what is the reson (postulate, definition, or theorem) for this?
angle REC and angle BIG added together equal 180 degrees, what is the reson (postulate, definition, or theorem) for this?