The number of days in the months April, June, September and November (and in unusual circumstances February—see February 30). Although the number of days in a month vary, 30 is used to estimate …

Trigonometric special angles are specific angles (0°, 30°, 45°, 60°, 90°) for which the values of sine, cosine, and tangent are commonly used and have exact, simplified forms.

Jan 29, 2016 · Numbers each have their own value depending on what importance people give to them, maybe it marks an anniversary, or a lucky number. Well, here's 30 facts!

Welcome to the most comprehensive review of the number 30 ever created. The number 30 possesses remarkable attributes, including–and perhaps most profoundly–its role (along with its prime factors 2, …

'30 Seconds to Mars' (also Thirty Seconds to Mars, abbreviated as 30STM or TSTM) is an American alternative rock band formed in 1998 in Los Angeles (California).

From its role in geometry, astronomy, and religion, to its presence in everyday life, the number 30 has a wide range of applications and meanings that will pique your curiosity. Join us as we explore the …

Explore the curious properties of number 30, an even composite number composed of three distinct primes. Includes mathematical info, prime factorization, divisors, bases and much more! A …

A 30-degree angle is an acute angle that is less than 90 degrees. Learn how to construct a 30-degree angle using a protractor, real-life examples, and some solved examples.

30 is a positive integer that comes after 29 and before 31. It is an even number and it is also considered a composite number, meaning it can be divided evenly by numbers other than 1 or itself.

Properties of 30: prime decomposition, primality test, divisors, arithmetic properties, and conversion in binary, octal, hexadecimal, etc.