Find the value of x.

30°

Step-by-step explanation:

It's quite easy. Angles on a straight line add up to 180° and angle HEG = 90°. So 2x + x = 180 - 90 = 90° --> 3x = 90° --> x = 30°

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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