To calculate the distance represented by degrees of latitude, you can use the fact that one degree of latitude is approximately equal to 111 kilometers (or about 69 miles).
To find the distance for 77 degrees of latitude:
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In kilometers: \[ 77 \text{ degrees} \times 111 \text{ km/degree} \approx 8,547 \text{ km} \]
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In miles: \[ 77 \text{ degrees} \times 69 \text{ miles/degree} \approx 5,313 \text{ miles} \]
So, 77 degrees of latitude is approximately 8,547 kilometers or 5,313 miles.