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Question
primary 6 | Maths
| Fractions
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AnyonE able to help.. Thank u
Date Posted: 5 years ago
Views: 429
Realise that A and B occupies half the rectangle. C and D also occupies half the rectangle.
So A + B = C + D
Since A + B = 10 units,
C + D also = 10 units.
Therefore, make the ratio for C:D such that the total also becomes 10 units.
Ratio of C : D
= 3 : 2 = 6 : 4
Total = 6+4 = 10 units
Now, difference of A and D = 24 cm²
Difference = 7 units - 4 units = 3 units
So 3 units = 24 cm²
1 unit = 8 cm²
It is easy to find the area of the rectangle from here.
So A + B = C + D
Since A + B = 10 units,
C + D also = 10 units.
Therefore, make the ratio for C:D such that the total also becomes 10 units.
Ratio of C : D
= 3 : 2 = 6 : 4
Total = 6+4 = 10 units
Now, difference of A and D = 24 cm²
Difference = 7 units - 4 units = 3 units
So 3 units = 24 cm²
1 unit = 8 cm²
It is easy to find the area of the rectangle from here.
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Hope this helps as well
Date Posted:
5 years ago
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