As shown in a figure, two kinds of parallelograms A and B are made of using four equilateral triangles of which one side is 1 cm and trapezoid C is made of using three equilateral triangles of which one side is 1 cm in large numbers, respectively.
When these parallelograms and trapezoids are spread out inside of the right hexagon of which one side is 4 cm with, a total of 26 pieces were used.
In this case, find the number of the trapezoid C used.
When these parallelograms and trapezoids are spread out inside of the right hexagon of which one side is 4 cm with, a total of 26 pieces were used.
In this case, find the number of the trapezoid C used.
Answer
8 pieces
Reference
