Question

a=8 b=8 in a right angle what is the exact value of c then give an approximation to three decimal points

Answer 1

c² = a² + b²
= 8² + 8²
= 64 + 64
= 128
c = root(128)
c = 11.3137
c = 11.314

Answer 2

\[\sqrt{8^2+8^2}=\sqrt{128}=11.3137085\]
11.313

Answer 3

11.314 not 11.313