10,10 and 20 cannot as 10+10=20 so there would be a triangle with no area.
The others can all be the sides of a triangle as 7+7>8, 7+6>11 and 2+8>9.
Answer:
69
Step-by-step explanation:
Answer:
c.
Step-by-step explanation:
because you take 12÷4 and the outcome turns out to be 3
Answer:
20
Step-by-step explanation:
Subtract 60 from both sides, 60-60 cancels out and 80-60 is 20
m=20