Erfana Beevee Binte Hassan Shariff's answer to Aidan's Secondary 1 Maths Singapore question.
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(C) notice the following pattern:
1st row=1
1st row+2nd row= 1+3=4=2^2
1st +2nd+3rd=1+3+5=9=3^2
So, sum of triangles in all 14 rows=14^2=196
1st row=1
1st row+2nd row= 1+3=4=2^2
1st +2nd+3rd=1+3+5=9=3^2
So, sum of triangles in all 14 rows=14^2=196
Date Posted:
1 year ago
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