The prefix means 8.How to remember this is a octagon which has 8 sides.Therefore Octa means eight.I hope this helped.
The correct answer should be c) 3.
The last one
1. 3-p
2. 8 (divid sign) d +6
3. 11+9*4
4. 4 (divide sign) 2
5. X= 10+6(divide sign) 4
Answer:
20 feet
Step-by-step explanation:
I believe that since it is an equilateral triangle, all sides are equal, making 20=20
