The pie chart shows the popularity of different fruits using angles. Let's list the fruits from least to most popular based on the angles provided:

1. Pear (orange): 51°
2. Kiwi (green): 65°
3. Grape (purple): 67°
4. Lime (yellow): 72°

Therefore, the order of fruits from least to most popular is:

1. Pear (least popular)
2. Kiwi
3. Grape
4. Lime (most popular)

Would you like a more detailed explanation or have any questions?

Here are 5 related questions to expand your understanding:

1. How do we calculate the percentage of each fruit's popularity using the given angles?
2. How can we verify if the angles in the pie chart are proportional to the popularity?
3. What is the total angle sum in a pie chart, and why?
4. How would you convert the pie chart data into a bar graph?
5. Can we use this pie chart data to predict the most popular fruit in another survey?

Tip: To find the percentage representation of each category in a pie chart, divide the angle by 360° and multiply by 100.