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primary 6 | Maths | Geometry
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Ms. Chia
Ms. Chia

primary 6 chevron_right Maths chevron_right Geometry chevron_right Singapore

Please assist with working. Thank you

Date Posted: 2 years ago
Views: 276
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sstrike
Sstrike
2 years ago
1764 = 42²

112 - 2×42 = 28
42-28 = 14
2×14 + 28 = 56

56×112 - 2×(22/7)×21²
= 3500cm² (Ans)

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AC Lim
Ac Lim's answer
12426 answers (A Helpful Person)
Hope this helps
AC Lim
AC Lim
2 years ago
1st find the length of big square (which you have done= 42cm).
2nd find the small square = 112-42-42= 28cm.
Ms. Chia
Ms. Chia
2 years ago
Thank you for your help