Answer:
x = 3
Explanation:
The side ratios of an isosceles right triangle are ...
1 : 1 : √2
AB : BC : AC
= 1 : 1 : √2
= 6 : 6 : 6√2 ⇒ BC = 6
The side ratios of a 30°-60°-90° right triangle are ...
BD : DC : BC
= 1 : √3 : 2
= 3 : 3√3 : 6
BD = x = 3
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