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18.07.2019 •
Mathematics
Find the value of y a.y= 2 b.y= 4 square root 3 /3 c.y=4 d.y= 4 square root 3
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Ответ:
The correct answer is option B. 4√3/3
Step-by-step explanation:
Points to remember
If a right angled triangle with with angles 30°, 60° and 90° then the sides are in the ratio 1 :√3 : 2
To find the value of y
From the figure we can see two right angled triangle.
From the figure we get height 'h' of large triangle is written by,
h : base : 8 = 1 : √3 : 2
Therefore h = 8/2 = 4
Also we can write,
y : h : hypotenuse of small triangle = 1 : √3 : 2
y : 4 : hypotenuse = 1 : √3 : 2
Therefore y = 4/√3 = 4√3/3
The correct answer is option B. 4√3/3
Ответ:
the nucleus is positive because it contains protons