An equilateral triangle is made of cardboard and lies on a table. Paola stands in front of the table and sees the triangle in the position shown.
She flips the triangle over, keeping edge QR on the table throughout the flip. From this position, Paola then flips the triangle again, this time keeping edge PR on the table throughout the flip. What is the resulting position of the triangle that Paola sees?
A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.
Solution
Starting with [[IMAGE0]] and flipping across QR results in [[IMAGE1]] .
Now flipping across PR results in [[IMAGE2]] , which is the resulting position that Paola sees.
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