10+12 is equal to 22. Divide 22 by 2 which is 11. So, the answer to you question is 11.
Hope it helps
It's the first one because surface area is l*w of each side and add that all together which is 288 sq in.
Answer:
1
Step-by-step explanation:
1 increased by 3=1+3=4
Twice of 1=1+1=2
4 is two more than 2.
Therefore, the number=1
That’s a obtuse angle I’m pretty sure.