We need to find the size of angle $n$. The figure shows a straight line with two angles on one side of it. One angle is labeled $n$, and the other is $52^\circ$.

1. Problem Description

We need to find the size of angle $n$. The figure shows a straight line with two angles on one side of it. One angle is labeled $n$, and the other is $52^\circ$.

2. Solution Steps

The angles on one side of a straight line sum to $180^\circ$. Thus, the sum of angle $n$ and the $52^\circ$ angle must be $180^\circ$.

We can write this as an equation:

$n + 52^\circ = 180^\circ$

Subtract $52^\circ$ from both sides of the equation to solve for $n$:

$n = 180^\circ - 52^\circ$

$n = 128^\circ$

3. Final Answer

The size of angle $n$ is $128^\circ$.