To find a percentage, you the decimal point in the percent two places to the right 16% = 0.16. Then multiply.
0.16 • 400 = 64
16% of 400 = 64
Answer: 31.11269837 round your answer if needed to
Step-by-step explanation:
Do you mean the phythagorus theorum: a squared + b squared= c squared
Its 8:2/3, we can write it as

Now we can back to 12:1 - its the result