### Cup

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Cup

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Cup

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dancer

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dancer

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dancer

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dancer

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Diver

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Diver

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Diver

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Diver

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### 3 Square Inscribed In A Dodecagon

Illustration of 3 squares inscribed in an regular dodecagon. Each vertex of the dodecagon is also a…

### Square Circumscribed About A Dodecagon

Illustration of a square circumscribed about a regular dodecagon. This could also be described as a…

### Square Inscribed In A Dodecagon

Illustration of a square inscribed in an regular dodecagon. This could also be described as a regular…

### Squares Inscribed and Circumscribed About a Regular Dodecagon

Illustration of 2 squares; one inscribed in a regular dodecagon and the other circumscribed about the…

### Dog

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dog

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dog

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dog

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dolphin

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dolphin

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dolphin

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Dolphin

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arch

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arch

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arch

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arch

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arrow

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arrow

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arrow

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Double Arrow

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Duck

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Duck

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Duck

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Duck

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Backward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Backward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Backward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Backward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Forward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Forward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Forward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Egret Facing Forward

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Area of Ellipse

Illustration of a ellipse with squares drawn to demonstrate area.

### Mechanical Drawing Exercise Three Inscribed Squares with Rounded Corners using Triangle and Bow

"With a 45 degree triangle draw lines AC and BD through the center and construct three squares. Set…

### Similar Figures

2 squares that are similar figures

### Fisherman

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Fisherman

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Fisherman

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Fisherman

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flamingo

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flamingo

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flamingo

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flamingo

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flounder

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flounder

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flounder

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flounder

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flower

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…

### Flower

Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…