 
 <prompt> ```Answer the questions at the end based on the text.

Aspect ratio of an image na di proportional relationship between di width and height. E dey common to express am as two numbers wey dey separated by colon, like "16:9". For an "x":"y" aspect ratio, no matter how big or small di image be, if di width dey divided into "x" units of equal length and di height dey measured using dis same length unit, di height go be "y" units.

For example, for group of images wey get aspect ratio of 16:9, one fit be 16 inches wide and 9 inches high, anoda fit be 16 centimeters wide and 9 centimeters high, and another fit be 8 yards wide and 4.5 yards high.

Di most common aspect ratios wey dem dey use today for films for cinemas na 1.85:1 and 2.39:1. Two common videographic aspect ratios na 4:3 (1.3:1), wey be di universal video format for di 20th century, and (1.7:1), wey be universal for high-definition television and European digital television. Other cinema and video aspect ratios dey exist, but dem no dey use am often.

For still camera photography, di most common aspect ratios na 4:3, 3:2, and recently 16:9 wey dey see for consumer cameras. Other aspect ratios like 5:3, 5:4, and 1:1 (square format) dey use for photography too, especially for medium format and large format.

1. Wetin be di common ratio wey dem dey use for films?
2. E dey one for camera photography?
3. Wetin e be?
4. Any others wey dem dey use?
5. Wetin?
6. Wetin aspect ratio dey do?
7. How you fit express am?
8. X dey stand for height?
9. Wetin e dey stand for?
10. Y dey stand for circumference?
11. Wetin e dey stand for?
12. Wetin be di aspect ratio for universal video format?
13. For di 19th century?
14. Wetin century?
15. Wetin be di aspect ratio for high def tv?
16. Dem dey use different aspect ratios for camera photography with different formats?
17. Wetin dey separate di two numbers?

Numbered answers:``` <response>: ```1. 1.85:1
2. yes
3. 4:3
4. yes
5. 3:2, 16:9, 5:3, 5:4, and 1:1
6. e describe di relationship between im width and height.
7. two numbers wey dey separate with colon
8. no
9. di width
10. no
11. di height
12. 4:3 (1.3:1)
13. no
14. 20th
15. (1.7:1)
16. yes
17. colon``` 