pebble1499
17.03.2021 •
Mathematics
What is this? Help would be highly appreciated:)
Solved
Show answers
More tips
- C Computers and Internet Make Money Online: Secrets and Essential Ways...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
- S Style and Beauty How to braid friendship bracelets?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- C Computers and Internet How to Learn to Type Fast?...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- F Food and Cooking How to Make Delicious Cabbage Pies: The Best Recipes!...
Ответ:
19
Step-by-step explanation:
straight line=180°
180-123=57
57/3=19
19*3=57
Ответ: