1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
elena55 [62]
3 years ago
13

ASAP What is the lateral area of this regular octagonal pyramid?? Explain your answer if you can plz thanks

Mathematics
2 answers:
horsena [70]3 years ago
6 0

Answer:

Hello! The correct answer is 298.7 cm^{2}

Step-by-step explanation:

I am just confirming!

Archy [21]3 years ago
3 0
The lateral area would be 298.7 cm².

The lateral area is the area of all of the lateral faces of the pyramid.  There are 8 triangles making up the lateral faces.  Each has a base of 6.6.  The formula for the area of a triangle is

A=1/2bh,

so we still need the height of the triangle.

The height of each lateral triangle is the slant height of the pyramid.  The slant height of the pyramid forms a right triangle with the height of the pyramid and the "radius" as it were of the pyramid.  Thus we use the Pythagorean theorem:

8²+8²=h²
64+64=h²
128=h²
√128=√(h²)
8√2 = h

Substituting this into our area formula we have:
A=1/2(6.6)(8√2)

We will go ahead and multiply this by 8, since there are 8 lateral faces:
LA=8(1/2)(6.6)(8√2)
LA = 298.7
You might be interested in
Alexandra has 78 emails in her inbox. She deletes 47 emails.How many emails are left in het inbox? Draw jumps and level the numb
ad-work [718]

Answer:

31 emails, but I can't do a # number line.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Mr. Denning bought a jacket for $67.50
Butoxors [25]

67.50 + 12.50 = 80

80/100 = 0,8 x 3 = 2.4

so, the total bill was 80 + 2.4 = 82.4

<em>hope it helps :)</em>

6 0
3 years ago
label the Venn diagram with number categories. Then classify each of the given numbers by written it in an appropriate place on
DiKsa [7]

I need to see the diagram in order to answer your question.

7 0
3 years ago
YO IS THIS RIGHT!??????? 12 POINNNTTTSS BOI
Amiraneli [1.4K]

Click off the first one because 180 (Thea) < 225 (Eleanor). Then keep the second one and click the third and fourth one.

3 0
3 years ago
What is 25 divided by 225
daser333 [38]
0.097- or it could be 0.10 if you round it
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution of the inequality shown below w+7&gt;2
    6·2 answers
  • Find the mean median mode range 61 63 69 74 74 77
    5·2 answers
  • If quadrilateral PQRS is a kite, which statements must be true? Check all that apply.
    11·2 answers
  • Please help me with number 9
    5·1 answer
  • How do I solve x/2 plus x/5 equals 1
    9·2 answers
  • Giving away brainliest. Basic question. :)
    11·1 answer
  • Please help !!!!!!!!!
    9·1 answer
  • N^2-8n=0 <br><br><br> can i have the work shown?
    6·1 answer
  • 2. Brian thinks that 1.75 x 10-3 is less than 1.25 10-2. Is he correct? Justify your answer.
    11·1 answer
  • Please help giving brainliest im begging lol ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!