sstrike's answer to Ok's Primary 6 Maths Measurement Singapore question.

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sstrike
Sstrike's answer
5567 answers (A Helpful Person)
(a)
(48-4×4)÷2÷2 = 8
2×8×60 = 960 cm (Ans)

or

(48-4×4)÷2×60 = 960 cm (Ans)

(b)
48×(60² - 3.14×30²)
= 37152 cm² (Ans)