Question

Sid lives 3 miles north and 8 miles west of school. What is the direct distance from Sid's house to school?
A.≈ 11 miles
B. ≈ 5 miles
C.≈ 36.5 miles
D.≈ 8.5 miles

Answer 1

The answer is D, about 8.5 miles. You can use the Pythagorean theorem
and plug in 3 and 8 as the length of the legs.

Answer 2

A^2+B^2=C^2

3^2+8^2=C^2

9+64=C^2

73=C^2 

the square root of 73 is 8.5
 
There for the answer is D