Answer:
Hello! answer: 10
Explanation:
you do a^2+b^2=c^2 meaning
8 × 8 + 6 × 6 will equal a number which then we have to find out the square root of that number meaning what number you can multiply by itself to get that number so...
8 × 8 = 64
6 × 6 = 36
64 + 36 = 100
√100 = 10
10 × 10 = 100 therefore the missing length is 10 hope that helps!