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Secondary 1 | Maths
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Help on (c), (d) and (e)
Date Posted: 8 months ago
Views: 100
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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
You may want to try d and e from the hint answer in c :)
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