EM-2280

Composite solids

E Math · Secondary 4 · Hard · Composite solids

A microchip is in the shape of a cuboid measuring 8 mm by 5 mm by 2 mm. A model of the microchip is made to a scale of 1 : 4. What is the surface area of the model, in

\text{mm}^2

$528\ \text{mm}^2$
$844\ \text{mm}^2$
$2112\ \text{mm}^2$
$3376\ \text{mm}^2$

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