Pls help I am unsure with part a) and I don’t know how to do part b)

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primary 5 | Maths | Area & Volume
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primary 5 Maths Area & Volume Singapore

Pls help I am unsure with part a) and I don’t know how to do part b)

Date Posted: 3 years ago

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Hope this helps

Date Posted: 3 years ago

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Elsa

3 years ago

Thanks but can you explain why need to times 2 in part b)

AC Lim

3 years ago

Formula for area of triangle
= ½ × base × height

Therefore,
½ × base × height = 46.08
½ × base (12) × height = 46.08
Height = 46.08 ÷ 12 ÷ ½

Height = 46.08 ÷ 12 × 2

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