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dearash1730
21.08.2020 •
Mathematics
The value of 90 squared is between which two whole numbers?
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Ответ:
Step-by-step explanation:
A triangle with angles of 30-60-90 will always have sides that measure in the following proportions:
The side opposite the 30* angle = a
The side opposite the 60* angle =![a\sqrt{3}](/tpl/images/1327/6966/a6dad.png)
The side opposite the 90* angle = 2a
(I used "a" here because your question uses "x" and I don't want to confuse things, but usually people use "x" rather than "a")
They gave us that the hypotenuse (the side opposite the 90* angle) is 10, from there we can figure out the other sides:
Since the side opposite 90* is 2a, and 2a = 10, divide 10 by 2 and you get a = 5.
Once we know what "a" is, we can fill in the rest:
30* = 5
60* =![5\sqrt{3}](/tpl/images/1327/6966/17a2e.png)
90* = 10