1. Draw the horizontal line AB.

2. Take A as a centre and AB as radius and describe arc.

3. Take B as centre and same radius and describe arc.

4. Connect point of intersection with A and B.

Note. - Teach characteristics of a triangle.

Compare with other triangles and give name " equilateral."

No. 6. Isosceles Triangle

1. Draw the base AB.

2. With centre A and radius greater than one-half of AB (in this case 4") describe an arc. With centre B and same radius describe arc.

3. Connect the point of intersection with A and B.

Note. - Teach the characteristics of the isosceles triangle.

No. 7. Scalene Triangle

1. Draw horizontal line AB, 5" long.

2. With centre A and radius 4" describe are.

3. With centre B and radius 3" describe are.

4. Connect point of intersection with A and B.

Note. - Compare with triangles previously constructed.