Question

I’m struggling and my brain won’t work right now help

Answer 1

10sr2 or 14.1421356

Explanation:

Answer 2

`\qquad\qquad\huge\underline{{\sf Answer}}♨`

if the triangle is an Isosceles triangle, then it's other two angles measure 45° each.

So, let's use Trigonometry here :

`\qquad \sf  \dashrightarrow \: \cos(45) = (10)/(x)`

`\qquad \sf  \dashrightarrow \: (1)/( √(2) ) = (10)/(x)`

`\qquad \sf  \dashrightarrow \:x = 10 √(2)`

Therefore, the value of x is 10√2 units