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primary 6 | Maths
| Ratio
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Date Posted: 2 years ago
Views: 452
can u understand
W+X = V+Z+Y = ½ rectangle?
V:Z:Y : V+Z+Y = 5:3:4 : 12 = 15:9:12 : 36
V:W = 3:4 = 15:20
X = 36 - W = 36 - 20 = 16
(a)
W:X:Y = 20:16:12 = 5:4:3
(b)
2×36 = 72
V:rect = 15:72 = 180 : 864
72×180÷15 = 864 cm² (Ans)
W+X = V+Z+Y = ½ rectangle?
V:Z:Y : V+Z+Y = 5:3:4 : 12 = 15:9:12 : 36
V:W = 3:4 = 15:20
X = 36 - W = 36 - 20 = 16
(a)
W:X:Y = 20:16:12 = 5:4:3
(b)
2×36 = 72
V:rect = 15:72 = 180 : 864
72×180÷15 = 864 cm² (Ans)
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Hope this helps
Date Posted:
2 years ago
Thank you very much
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