Question

The points A, B, C, D, and E are located on a straight line in order. The distance from A to E is 20cm. The distance from A to D is 15cm. The distance from B to E is 10cm. C is halfway between B and D. Find the distance from A to C.: *
2.5 cm
5 cm
10 cm
12.5 cm

Answer 1

Here,
AE[20cm] - AD[15cm] = DE [5cm]
BE[10cm] - DE[5cm] = BD [5cm]
BC = CD = 2.5 cm.
so, AC = AD[15cm] - CD[2.5cm] = 12.5cm.

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A B C D E