Construct a `DeltaABC` whose perimeter is 10.5 cm and the base angles are `60^(@)` and 45^(@)`.

Explanation

To construct triangle \( \Delta ABC \) with a perimeter of 10.5 cm and base angles of \( 60^\circ \) and \( 45^\circ \), follow these steps:

### Step 1: Draw the Base
1. Draw a line segment \( PQ \) of length 10.5 cm. This will be the base of the triangle.
- **Hint:** Use a ruler to measure and draw the line accurately.

### Step 2: Construct Angle \( RPQ \)
2. At point \( P \), construct an angle of \( 60^\circ \):
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