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if we consider the earth to be spherical then what area of it would be plain to constitute to the sphere |
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Answer» The RECTANGULAR coordinates \left(x,y,z\right) and the cylindrical coordinates \left(r,\theta ,z\right) of a point are related as FOLLOWS: \begin{array}{cccccc}\hfill x& \hfill =\hfill & r\phantom{\rule{0.2em}{0ex}}\text{cos}\phantom{\rule{0.2em}{0ex}}\theta \hfill & & & \text{These equations are used to convert from}\hfill \\ \hfill y& \hfill =\hfill & r\phantom{\rule{0.2em}{0ex}}\text{sin}\phantom{\rule{0.2em}{0ex}}\theta \hfill & & & \text{cylindrical coordinates to rectangular}\hfill \\ \hfill z& \hfill =\hfill & z\hfill & & & \text{coordinates.}\hfill \\ & \hfill \text{and}\hfill & & & & \\ \hfill {r}^{2}& \hfill =\hfill & {x}^{2}+{y}^{2}\hfill & & & \text{These equations are used to convert from}\hfill \\ \hfill \text{TAN}\phantom{\rule{0.2em}{0ex}}\theta & \hfill =\hfill & \frac{y}{x}\hfill & & & \text{rectangular coordinates to cylindrical}\hfill \\ \hfill z& \hfill =\hfill & z\hfill & & & \text{coordinates.}\hfill \end{array}Explanation: |
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