Multiple choice question II — task. Mathematics State Board, Class 9.

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1. The total surface area of a cuboid with dimension

$10 \ cm$

$\times$

$6 \ cm$

$\times$

$5 \ cm$ is:

$280 \ cm^2$
$600 \ cm^2$
$300 \ cm^2$
$360 \ cm^2$

2. If the ratio of the sides of two cubes are

$2:3$ , then ratio of their surface areas will be:

$4:6$
$4:9$
$16:36$
$6:9$

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