Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 1 (Q.No. 32)
32.
The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.
3a/2
23a
a/23
32a
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 2 of 2.

Rahul G said:   5 years ago
Then bisect anyone angle as well as the side of the triangle which bisects the angle and draws perpendicular on the side through bisected point.

We get right angle triangle which has a 30-degree angle and base side a/2.

Using this data we can apply trigonometry tan (θ) = h/(a/2)
Since θ=30.

h is an answer which is = a/2(√)3.


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