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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.
Sagot :
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