Answer:
A. 500 yards
Explanation:
1 block = 100 yards
one leg: 4*100= 400 yards
second leg: 3*100= 300 yards
hypotenuse:
pythagorean theorem
hypotenuse ^2 = (one leg)^2 + (second leg)^2
hypotenuse ^2= (400)^2 + (300)^2
hypotenuse ^2 = 160,000 + 90,000
hypotenuse = sqrt(250,000)
hypotenuse = 500 yards