Figure plate set
AssigneePascal Kabushiki Kaisha
InventorHiroki Moriyasu
Life of this patent
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Abstract
The present invention provides a figure plate set (10) for learning that comprises a first triangular plate (1) that has an isosceles triangular shape having an apex angle of 108° and base angles of 36°; and a second triangular plate (2) that has an isosceles triangular shape having an apex angle of 36° and base angles of 72°, wherein a length of isosceles sides (7, 8) of the first triangular plate (1) is same as a length of isosceles sides (14, 15) or a bottom side (16) of the second triangular plate (2), and a new triangular shape can be formed by combining the first triangular plate (1) and the second triangular plate (2).
Claims16
A figure plate set for learning, comprising:
- a first triangular plate that has an isosceles triangular shape having an apex angle of 108° and base angles of 36°;
- and
- a second triangular plate that has an isosceles triangular shape having an apex angle of 36° and base angles of 72°, wherein
- a length of isosceles sides of the first triangular plate is same as a length of isosceles sides or a bottom side of the second triangular plate,
- a new triangular shape can be formed by combining the first triangular plate and the second triangular plate, and
- an indicator indicating a triangle having the same angles as the first triangular plate or the second triangular plate on which the indicator is indicated or another indicator of a regular pentagon is indicated on at least one of the first triangular plate and the second triangular plate.
A figure plate set for learning, comprising:
- a first triangular plate that has an isosceles triangular shape having an apex angle of 108° and base angles of 36°;
- and
- a second triangular plate that has an isosceles triangular shape having an apex angle of 36° and base angles of 72°, wherein
- a length of isosceles sides of the first triangular plate is same as a length of isosceles sides or a bottom side of the second triangular plate,
- a new triangular shape can be formed by combining the first triangular plate and the second triangular plate,
- a plate member having a circular concave portion and a group of triangular plates including the first triangular plate and the second triangular plate are provided, and
- a regular pentagon or a regular decagon inscribed in the circular concave portion can be formed by combining the group of triangular plates.
A figure plate set for learning, comprising:
- a first triangular plate that has an isosceles triangular shape having an apex angle of 108° and base angles of 36°;
- and
- a second triangular plate that has an isosceles triangular shape having an apex angle of 36° and base angles of 72°, wherein
- a length of isosceles sides of the first triangular plate is same as a length of isosceles sides or a bottom side of the second triangular plate,
- a new triangular shape can be formed by combining the first triangular plate and the second triangular plate,
- a plate member having a concave portion of a regular decagon and a group of triangular plates including the first triangular plate and the second triangular plate are provided, and
- a regular pentagon inscribed in the concave portion of the regular decagon can be formed by combining the group of triangular plates.
Dependencies are inferred from the claim text.