Perform the calculation.
-$90 ^ { \circ } - 32 ^ { \circ } 16 ^ { \prime } 43 ^ { \prime \prime }$
A) $57 ^ { \circ } 43 ^ { \prime } 17 ^ { \prime \prime }$
B) $58 ^ { \circ } 44 ^ { \prime } 17 ^ { \prime \prime }$
C) $57 ^ { \circ } 43 ^ { \prime } 16 ^ { \prime \prime }$
D) $57 ^ { \circ } 44 ^ { \prime } 17 ^ { \prime \prime }$

Question

Quizplus · Accepted Answer

To subtract the given angles, start from the rightmost units (seconds) and move to the left. Since you can't subtract 43" from 0", you need to borrow 1' (which equals 60"), making the calculation: $90^\circ - 32^\circ 16' (60" + 0" - 43") = 57^\circ 43' 17"$.

Perform the Calculation 90∘−32∘16′43′′90 ^ { \circ } - 32 ^ { \circ } 16 ^ { \prime } 43 ^ { \prime \prime }90∘−32∘16′43′′

Perform the Calculation $90 ^ { \circ } - 32 ^ { \circ } 16 ^ { \prime } 43 ^ { \prime \prime }$