![rivermadds3117](/avatars/26439.jpg)
rivermadds3117
27.12.2020 •
Mathematics
Can someone help on question 2
Solved
Show answers
More tips
- F Family and Home How to Properly Use a Water Level?...
- D Dating, Love, Relationships 10 Useful Tips on How to Survive a Breakup?...
- F Food and Cooking Apple Cider Vinegar: The Ultimate Health and Beauty Solution...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
Answers on questions: Mathematics
- M Mathematics Help w(a)=a-1; find w(0)...
- M Mathematics Johnny has a candy business. He makes an profit of $0.75 for every 2 candy bars he sells. Which of the following represents the unit rate with the cost per candy bar?...
- C Computers and Technology In process-based do/s, resources are controlled by servers called that are responsible for accepting requests for service on the individual devices they control, processing each...
Ответ:
692.82 m^2
Step-by-step explanation:
Regular tetrahedrons have four equivalent equilateral triangular faces, so only the side length of one is needed.
In practice, you could find the area of one triangular side and multiply it by 4. This is probably what your teacher wants you to do, but there is another way if you have a calculator...
To make it easier, use the following equation to calculate the surface area of a tetrahedron:
Surface Area = sqrt(3) * a^2 ( "a" represents edge length )
sqrt (3) * 20^2
sqrt (3) * 400
692.82032302 m^2
Ответ:
-81
Step-by-step explanation:
(might be wrong)