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primary 5 | Maths | Whole Numbers
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Shanice
Shanice

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

How to find (c)?

Date Posted: 3 years ago
Views: 401
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Figure 29 have total of 30×30 square.
Shaded square = 1+2+3+4.....27+28-29+30.
Formula = F × (F+1) ÷ 2
Total shaded square = 30×31 ÷ 2 = 465.
Hope this helps.
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AC Lim
Ac Lim's answer
12437 answers (A Helpful Person)
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Shanice
Shanice
3 years ago
Thx so much AC Lim!!
Shanice
Shanice
3 years ago
Thx AC Lim!!
AC Lim
AC Lim
3 years ago
Most welcome. :)