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First of all, it is obviously a right triangle. Suppose the shortest leg (the one with the 60 and 90 degree angle) is xunits long. Then the other leg is x times (the square root of 3). The hypotenuse is just twice the length of the first leg (2x). With this triangle you are able to find the side lengths and the angles without using trigonometry.
What else can I help you with?
What is the answer of the LCM 306090?
You cannot find the LCM of only one number, two or more are needed.
What is the LCM of 306090?
It is not possible to give a sensible answer to this question. The least common multiple (LCM) refers to a multiple that is COMMON to two or more numbers. You have only one number in the question!
What is the least common multiple of 51015?
As presented in the question it looks like a single number 51015. The lowest common multiple of 51015 depends upon the other number(s) with which 51015 has common multiples, but it will always be one of the multiples of 51015, namely: 51015, 102030, 153045, 204060, 255075, 306090, ... However, I suspect that you wrote the question separating 5 10 and 15 by commas with no spaces following the commas (ie ``...multiple of 5,10,15'') - unfortunately due to limitations some punctuation (the comma being one of them) get stripped from questions. The lowest common multiple of 5, 10 and 15 is 30.
