Sorry I had to upload a question
Answer:
Answer # 1 and answer #4
Step-by-step explanation:
If line XY is a bisector, it divided the line YW in half, therefore making ZY equal to ZW
Euclids 1st book proposition 13 states that a line standing on another line makes 2 right angles. therefore <YZW is a right angle because that angle plus <WZX must be equal to 180 and line YW splits the angles in half
11 is 110 for x and y
12 is 90 degrees for x and y
13 is also 90 degrees for x and y
6×5=30. the sum of the five numbers is 30. then just do 30-7-8-5-2=8. 8 is the number on the bottom card.
