A² + b² = c²
a² = c² - b²
a² = 9² - 6²
a² = 81 - 36
a² = 45
a = √45
a ≈ 6.7082
a = 6.7
Answer:
Here is how it should be graphed.
You can look for friendly numbers such as
48 and 2, split 82 in 80 and 2 and then associate the numbers conveniently
48+ (2+80)=
(48+2)+80=
50+80 which you can do it and is 130 or
50+80=
50+50+30=
100+30 which is 130