Answer:
Step-by-step explanation:
diagonal=
diagonal=
diagonal=14.1421356
All you have to do is addition. 2+5+4=11. Or you can break it down and go 2+5=7 and then 7+4=11. Or 5+4=9 then 9+2=11. Or 4+2=6 then 6+5=11.
<span>9, 12, 19, 30, ...
</span>formula for the nth term is;
<span>2n^2 + 3n - 10</span>
12 feet squared or 3 feet squared. hopefully this helps i got 2 different answers