Perform the calculation.
-$177 ^ { \circ } 35 ^ { \prime } + 12 ^ { \circ } 53 ^ { \prime }$
A) $29 ^ { \circ } 28 ^ { \prime }$
B) $190 ^ { \circ } 88 ^ { \prime }$
C) $190 ^ { \circ } 28 ^ { \prime }$
D) $29 ^ { \circ } 88 ^ { \prime }$

Question

Quizplus · Accepted Answer

To add angles, you add the degrees and minutes separately. If the minutes add up to 60 or more, you convert the excess into degrees. Here, $177^\circ 35' + 12^\circ 53' = 189^\circ 88'$. Since 88 minutes is 1 degree and 28 minutes, the correct sum is $190^\circ 28'$.

Perform the Calculation 177∘35′+12∘53′177 ^ { \circ } 35 ^ { \prime } + 12 ^ { \circ } 53 ^ { \prime }177∘35′+12∘53′

Perform the Calculation $177 ^ { \circ } 35 ^ { \prime } + 12 ^ { \circ } 53 ^ { \prime }$