The value of x as required in the task content is; 4.5.
What is the value of X?
From the task content, it can be deduced that the larger and smaller triangles are congruent.
Hence, the ratio of their corresponding sides are equal and the value of X can be computed as follows;
(x+6)/(2x+6) = 21/30
42x + 126 = 30x +180
12x = 180 - 126
12x = 54
x = 54/12 = 4.5
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