(1) Convert these zenith to vertical angles
a. |
307°18’20” |
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b. |
73°42’12” |
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c. |
252°00’36” |
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d. |
124°50’39” |
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(2) Convert these vertical to zenith angles
a. |
+69°37’05” |
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b. |
-20°44’42” |
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