We need to find the size of angle $h$. The image shows a circle with two angles. One angle is labeled $h$, and the other is labeled $145^{\circ}$. Together, these two angles form a full circle.

1. Problem Description

We need to find the size of angle $h$. The image shows a circle with two angles. One angle is labeled $h$, and the other is labeled $145^{\circ}$. Together, these two angles form a full circle.

2. Solution Steps

The sum of angles in a full circle is $360^{\circ}$.

Therefore, we can write the equation:

$h + 145^{\circ} = 360^{\circ}$

Subtract $145^{\circ}$ from both sides of the equation to solve for $h$:

$h = 360^{\circ} - 145^{\circ}$

$h = 215^{\circ}$

3. Final Answer

The size of angle $h$ is $215^{\circ}$.