Two supplementary angles are in the ratio `4:5` . Find the angles.

Explanation

To solve the problem of finding two supplementary angles in the ratio of 4:5, we can follow these steps:

### Step-by-Step Solution:

1. **Define the Angles:**
Let the first angle be \(4x\) and the second angle be \(5x\), where \(x\) is a common multiplier.

2. **Set Up the Equation:**
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