Posted by Annabella Richards on Monday, June 20, 2011 at 2:16am.
The points A , B , C, D and E are located on a straight line in that order. The distance from A to E is 20cm. Te distance from A to D is 15cm. The distance from B to E is 10com. C is halfway between B and D. What is the distance from B to C?

Maths  Caitlyne, Monday, June 20, 2011 at 5:14am
5 cm

Maths  Corina, Monday, June 20, 2011 at 6:22pm
First you draw a straight line (measured at 20 cm) with A at the beginning and E at the end. Then you know A to D is 15 cm so you can mark D. Next you measure from B to E. You know it is 10 cm so you can mark B. Since C is halfway between B and D, you can get the distance from B to C.
10 5 5
ABDE
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