Answer:
1. yes
2. no
Step-by-step explanation:
In order to find out if 3 measures can make a triangle...
Add the 2 smaller lengths and see if it goes above/higher than the biggest length. If it does, then it can form a triangle.
1. Yes, because 8+4=12 and 12 is bigger than 10
2. No, because 7+9=16 and 16 is smaller than 18
