2(√2+√2)=2/(2√2)=1/(√2)≈0.707106781
You answer is 0.707106781 (Round to whatever number of decimals needed).
Note that √2 + √2 = 2√2
2/(2√2) = (√2)/2 = 0.707 (simplified)
0.707 is your answer
~
6.0m questions
7.8m answers