The value of x to the nearest tenth is 424.3
The given figure is a triangle.
A triangle is a 3-sided polygon. The triangle in the question is an isosceles triangle. This is a triangle that has two sides of equal sides and length.
In the triangle the given angles are 90 and 45, the third angle is 180° - (45° +90°) = 45°.
In order to determine the value value of x, we would make use of the formula:
cos = adjacent / hypotenuse
cos 45 = x / 600
0.7071 = x / 600
x = 424.26
x = 424.3 (to the nearest tenth)
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