Answer:
8.1 blocks from his house
Step-by-step explanation:
Draw it out,
You'll end up with a triangle with side a= 4 and b=7. What's left to find is the hypotenuse (the distance he is from his house).
Use pythagorean theorem (a^2 + b^2= C^2)
4^2 + 7^2= C^2
16 + 49 = C^2
65 = C^2
C= 8.06, round to 8.1
