Answer:
Step-by-step explanation:
102+202+302+402+502+602+702+802+902(4518)
+112+212+312+...+ 812+912(4608)
+122+222+322+...+822+922(4698)
+132+232+332+...+932(4788)
..........................................
+192+292+392+...+992(5328)
4518+4608+4698+...+5328
n=10
[tex]s=\frac{10}{2}(4518+5328)\\=5(9846)\\=49230[/tex]
