A cuboid has a total surface area of 400 cm 2 and a volume of V cm

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A cuboid has a total surface area of 400 cm² and a volume of V cm³.

The dimensions of the cuboid are 4x cm by x cm by h cm.

a. Express h in terms of V and x.

b. Show that V = 160x – 160/5 x³.

c. Find the value of x when V is a maximum.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Sep 01, 2021 01:06 AM

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A cuboid has a total surface area of 400 cm 2 and a volume of V cm

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a The total surface area of a cuboid is given by 2lw 2lh 2wh where l is th...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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