Given numbers 4, 3, and 2 in specific positions around a rectangle containing 20, find the missing number in the top right position.

The image shows a large rectangle with the number 20 inside it. Around the rectangle, there are numbers 4 (top left), 3 (bottom left), and 2 (bottom right). There is an empty small square at the top right. We need to find the number that should be in this empty square.

Let's analyze the relationship between the numbers outside the rectangle and the number inside.
Let:

• TL = Top Left number = 4
• BL = Bottom Left number = 3
• BR = Bottom Right number = 2
• C = Center number = 20
• TR = Top Right number (the empty square) = ?

We need to find a