A metal plate has a circular hole cut through its centre. When the whole plate is heated, what happens to the area of the hole?

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1. A metal plate has a circular hole cut through its centre. When the whole plate is heated, what happens to the area of the hole?

It increases

It decreases

It stays exactly the same

It increases, then decreases

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A hole in a heated plate expands just as if it were filled with the same metal — the surrounding material expands outward, enlarging the hole rather than shrinking it.