sstrike's answer to Ur mom's Primary 6 Maths Measurement Singapore question.
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(a) area → 1 small circle
π×50² = (22/7)×250 = 785.7cm² (Ans)
(b) perimeter → 1 small circle + ½ big circle
2×π×50 + ½×2×π×100
= 200π
= 200×(22/7)
= 628.6cm (Ans)
π×50² = (22/7)×250 = 785.7cm² (Ans)
(b) perimeter → 1 small circle + ½ big circle
2×π×50 + ½×2×π×100
= 200π
= 200×(22/7)
= 628.6cm (Ans)
Date Posted:
3 years ago
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