Question

Question #af6fc

Answer 1

Assuming `bar a` to be the smaller side of the rectangle, `bar a=bar x`

Explanation:

In an equilateral triangle, if one side of the triangle has a length of `bar x`, all sides have a length of `bar x`. This is the definition of an equilateral triangle. Knowing this, you can say that the smallest side of the rectangle (let's say `bar a`) has to have the same length as `bar x`, or `bar a = bar x`. Here is each step visualized:

Fig. 1

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Fig. 4