In a ` A B C` , find the measures of the angles of the triangle formed by joining the mid-points of the sides of this triangle.

Explanation

To solve the problem of finding the measures of the angles of the triangle formed by joining the midpoints of the sides of triangle ABC, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Triangle and Midpoints**:
- Let triangle ABC be given with vertices A, B, and C.
- Identify the midpoints of the sides AB, BC, and AC. Let's denote these midpoints as D, E, and F respectively. Thus, D is the midpoint of AB, E is the midpoint of BC, and F is the midpoint of AC.

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