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(c) Rajah 3 menunjukkan lukisan berskala bagi sebuah
dinding yang berbentuk segi empat tepat.
Diagram 3 shows a scale drawing of a rectangular
wall.
9.6 cm
480
12.4 cm 620
Rajah 3/Diagram 3
(i) Jika skala yang digunakan ialah 1 : 50, berapakah
luas sebenar dinding tersebut, dalam meter persegi?
If the scale used is 1:50 what is the actual area
of the wall, in square metre?
(ii) Farid mengecat dinding tersebut dengan
menggunakan 250 ml cat bagi 2 meter persegi.
Hitung isi padu cat, dalam liter, yang diperlukan
oleh Farid untuk keseluruhan dinding tersebut.
Farid paints the wall using 250 ml of paint for
2 square metres. Calculate the volume of paint,
in litres, needed by Farid for the whole wall.
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Sagot :

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