Math, asked by madhu234, 1 year ago

Find the triangular number whose base is 15.

Answers

Answered by HappiestWriter012
0
2m =15

m =15/2

m²-1= 225/4-1 =221/4

m²+1= 225/4+1=229/4

Hence the numbers are 15, 221/4,229/4

hope helped !
Answered by HarmillonSingh
2
15 , 221/4 ,229/4. ........
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