Numeracy homework help....

[Icemum]

Scuse me for being thick but can somebody explain hat a triangular number is? Is it along the same lines as a squared number? Thanks

i think it's one that you can make a triangle out of iyswim?

like 3
.1.
2.3

(i hope this works)... or 6

..1..
.2.3.
4.5.6.

Does this help?

here

.............. no nor me

oh yes.. that makes perfect sense mistymoo!

or this

Thankyou very much, starlover you jogged DDs memory!!