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White raven [17]
2 years ago
8

Which term describes a time period marked by a change that begins a new period of development? century decade era millennium

Mathematics
2 answers:
defon2 years ago
8 0

Answer:

Era

Step-by-step explanation:

Century, Decade and Millennium have something in common and that which they have in common is that they are all measurement of time.

The keyword measurement implies that they are units of time just like seconds, minutes, hours, etc.

Century -> 100 years

Decade -> 10 years

Millennium -> 1000 years

However, era is used to describe events in history;

Take for instance; the era of the first generation of computer;

So, from the list of given options; Era best answers the question

Lera25 [3.4K]2 years ago
6 0

Answer:

era

Step-by-step explanation:

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Step-by-step explanation:

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1. m\angle ECB=50\\2. m\textrm{ arc BC}=100\\3. m\textrm{ arc CD}=80\\4. m\angle DCF=40

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