Inside a barn, three people start to sing a song and dance. ALL: (singing) A square and a rectangle, a circle and a triangle. A square and a rectangle, a circle and a triangle. BOY: If you’re ...

You can split a rectangle into 2 right-angled triangles. Image caption, STEP 2: Use the compass to draw a circle. Put a dot where the compass rested and use the ruler to draw a horizontal line ...