![andreanb8083](/avatars/32404.jpg)
andreanb8083
11.01.2021 •
Mathematics
PLEASE HELP ME! C:
;-;
Solved
Show answers
More tips
- L Leisure and Entertainment Couchsurfing: A New Way to Travel...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
- S Style and Beauty Learn how to tie a keffiyeh on your head like a pro...
Answers on questions: Mathematics
- M Mathematics (1)-5y+2y (2)6x+4x (3)-3m-8(m+1 (4)-8(r-2)+6(r-2) (5)9m-7m+13 pls explain i don t know this well...
- M Mathematics Find the midpoint of A and B where A has the coordinates (8,2) and B has coordinates (3,8)...
- M Mathematics Please help if you can!!...
- M Mathematics What is the meaning of the underlined phrase in the following sentence? You re not supposed to be looking for me, you re supposed to be looking for the man de la camiseta...
- M Mathematics Which product is undefined?...
- M Mathematics 5. Bobby guessed there were 92 jelly beans in a jar. There were actually 107 2 points jellybeans. Find the percent of error. Round to the nearest hundredth of a percent...
- M Mathematics An individual size pizza has a diameter of 8 inches. What size does a two person pizza have to be if each person gets the same amount as person with an individual pizza?...
- M Mathematics Simplify 7p +20-13q-4q-18+6p a 13p + 17q-2 b 13p-17q+2 c3q+38 d 3q-6...
- M Mathematics Whats the answer to this? Evaluate 3×6 − 12÷6...
- M Mathematics 4. The sum of V-18 and v-72 is A. 6 В. 36 с. 30 D. 9іv2 ОА о В Ос OD...
Ответ:
I think it's D
Step-by-step explanation:
:)
Ответ:
Part A)
The lower base has a radius of 9 units, and the upper base has a radius of 6 units.
Part B)
5 units.
Part C)
75π or about 235.62 square units.
Step-by-step explanation:
Please refer to the figure below.
The cone has a radius of 9 units and a total height of 12 units.
A frustum of the cone has a height of 4 units.
Part A)
The lower radius of the frustum will simply be 9 units.
For the upper radius, we will use the properties of similar triangles. We will compare the smaller upper triangle to the overall larger triangle. This yields:
Solve for x. Simplify:
Cross-multiply:
The upper base has a radius of 6 units.
Part B)
We can first find the total slant height of the entire cone. By using the Pythagorean Theorem, this yields that the total slant height is:
Simplify:
Now, find the slant height of the upper cone:
So:
Then the slant height of the frustum will be the cone subtracted from the total. Thus:
Part C)
We can first find the lateral area of the entire cone. The lateral area is given by:
The lateral area of the entire cone will be:
The lateral area of the upper cone will be:
Then the lateral area of the frustum is: