Answer:
1000 yards
Step-by-step explanation:
First, create a triangle using the two known amounts.
12 blocks east will act as your base and 16 blocks south as your height. Connect these two lines to form a triangle.
This becomes a matter of the Pythagorean theorem or A^2 + B^2 = C^2
A= 12
B= 16
12^2 + 16^2 = C^2
400 = C^2
C= 20 blocks
Multiply this number by 50 to get the number in yards.
20 * 50 = 1000 yards