# Question: Using the triangle method show graphically that a A bar

Using the triangle method, show graphically that

(a) A-bar + B-bar = B-bar + A-bar and

(b) If A-bar – B-bar = C-bar, then A-bar = B-bar + C-bar

(a) A-bar + B-bar = B-bar + A-bar and

(b) If A-bar – B-bar = C-bar, then A-bar = B-bar + C-bar

## Answer to relevant Questions

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