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Hi, need help on this P6 math question. Thank you.

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0 Replies 2 Likes ✔Accepted Answer

This is an Area question.

    Shaded    Unshaded   Total   
Triangle      1350
Rectangle       60u

1/2 × 60 × 45 = 1350

1350 – 60u = 810

1350 – 810 = 60u

540 = 60u

1u = 540 ÷ 60 = 9 cm

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