In a `Delta ABC ,` `D` is the mid point of side `AC` such that `BD` `=1/2` `AC`. Show that `angleABC` is a right angle.

Explanation

To prove that angle ABC is a right angle in triangle ABC, where D is the midpoint of side AC and BD = 1/2 AC, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Given Information**:
- Triangle ABC
- D is the midpoint of AC, which means AD = DC.
- BD = 1/2 AC.
...