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
A farmer has two similar cylindrical grain silos used for storing grain during winter. The dimensions of the smaller silo are 3/
balu736 [363]
C is the correct answer I just did the paper
6 0
3 years ago
Please help due today!
Inessa [10]

Answer:

NO=22.6

Step-by-step explanation:

NO=MO+MN

after substituting MO and MN,

NO=15+7.6

=22.6

also, the problem says to answer with only the number, so just type 22.6!

8 0
3 years ago
Read 2 more answers
Use this figure to find the value of y ... Please help
ohaa [14]
Is it 22m...look at the other side shouldn't it be the same (sorry if I didn't help :))))))))
5 0
2 years ago
Read 2 more answers
How can you tell when a pattern shows counting by tens ?
mestny [16]
They end in 0? i think

4 0
3 years ago
Read 2 more answers
(-5,8) and (-10,3) what is the slope
ale4655 [162]

Answer:

The slope is 1.

Step-by-step explanation: when you graph them you do the rise/run you get 1 which is the slope.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A vertical pole, of height b, casts a shadow onto the ground. The angle of elevation from the tip of the shadow on the ground to
    7·1 answer
  • 6x^5y^2z^3+ 10x^3yz^7 -20x^4z^3
    12·1 answer
  • Find the slope and the y-intercept of the equation 4x+5y=-9
    15·1 answer
  • Consider the enlargement of the pentagon
    14·1 answer
  • (x + 1)(x + 3) + (x + 2)(x + 4)
    6·2 answers
  • You have less than three hours to finish your
    8·1 answer
  • I NEED ALL THE CORRECT ANSWERS QUICKLY
    10·1 answer
  • Solve pls branliest.
    11·1 answer
  • Need number 5 answered please!!!
    8·1 answer
  • PQ has a length of 17 units with P(-4,7). If the x- and y-coordinates of Q are both greater than the x- and y-coordinates of P,
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!