Question

write down the first seven number s that can be arranged as triangles​

Answer 1

Answer:

first 7 numbers which can be arranged as triangles are 3, 6,10,15, 21, 28, 36, Study the pattern: 1 × 8 + 1 = 9. 12 × 8 + 2 = 98.

Step-by-step explanation:

Answer 2

Hi friend

Here is your answer

First 7 numbers which can be arranged as triangles are 3,6,10,15,21,28,36,

Study the pattern:

1×8+1=9

12×8+2=98

123×8+3=987

1234×8+4=9876

12345×8+5=98765

HOPE IT'S HELP YOU

Mark as brainlist.