Find the coordinates of the centre of each hole.
Answer to Problem 69E
Explanation of Solution
Given information:
A steel plate has the form of one-fourth of a circle with a radius of
Calculation:
A steal plate has thew form of one-fourth of a circle with a radius of
We have to find the coordinates of the centre of each hole, that is, the positions
Now, let us consider the triangle, with the angle at the vertex as
Now, we know that
Now, the length of adjacent side to
Thus, using the above formula, we have,
Or
The length of the side opposite to
Now, we know that,
Thus, using the above formula, we have,
Or
=
Hence, the coordinates of the centre of the hole are
Now, let us find the coordinates
Now, let us consider the triangle, with the anglew at the vertex as
Now, we know that
Now, the length of adjacent side to
Thus, using the above formula, we have,
Or
The length of the side opposite to
Now, we know that,
Thus, using the above formula, we have,
Hence, the coordinates of the centre of the hole are
Chapter 4 Solutions
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