Michelle is facing west and Rebecca is facing Northwest. They both make a half turn to their left. What do they need to do so they both face North

Answer 1

To determine what Michelle and Rebecca need to do to face North after making a half turn to their left, let's break down their initial positions and the turns they make:

1. Michelle starts facing West:

   • After making a half turn to her left (which is a turn of 180 degrees), she will be facing East.

2. Rebecca starts facing Northwest:

   • Northwest is halfway between North and West. After making a half turn to her left, she will be facing Southeast.

Now, to both end up facing North:

• Michelle (currently facing East) would need to turn 90 degrees to her left (or a quarter turn) to face North.
• Rebecca (currently facing Southeast) would need to turn 135 degrees to her left (or a one-and-a-half quarter turn) to face North.

So, for both of them to face North after their half turns:

• Michelle should turn 90 degrees to the left.
• Rebecca should turn 135 degrees to the left.

This would allow both of them to face North.