Question

If C is the midpoint of AB and AB = 20, what is AC?

Answer 1

AC=10

Explanation:

If a-------c-------b and AB=20 and C is the midpoint, then half of 20 would be 10.

Answer 2

AC = 10

Explanation:

AC+ BC =AB

If C is the midpoint then AC = BC

AC + AC = 20

2 AC = 20

Divide by 2

2AC /2 = 20/2

AC = 10