Answer:
(3/2)√2
Explanation:
Here the ratio of x to 3 is the sine of the 45 degree angle.
Thus:
x √2
----- = -------
3 2
Cross multiplying, we get 2x = 3√2, so that x must be (3/2)√2
because its isosceles so 9+9=x²
and x equal
2√3
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