Draw a line segment of length 8.6 cm. Bisect it and measure the length of each part.

Explanation

Steps of construction :

1. Draw a line segment AB = 8.6 cm.

2. Draw arcs on each side of AB using A as a center at any radius more than half of 8.6.

3. Repeat Step 2 using B as a center and make sure these arcs cut the previous arcs.

4. Join the points P and Q which intersects AB at M.

Hence, AM= MB = 4.3 cm