Answer:
Use “ Math- way”
Step-by-step explanation:
It’s a web browser made for this stuff, you‘re welcome
Answer = 5.656854249
Step by step:
This equation is just a simple Pythagorean theorem ( if you were not aware, it’s a2 + b2 = c2. To get c is to find the square root of c)
You have known the formula Length of base is la division of Area and a haft of the height.
So we have 3

or


and

have fun