Question and answer
A square pyramid has a base with a perimeter of 40 inches and a height of 12 inches. Find the surface area and volume of the pyramid. Show all work for credit.
hi
Question
Asked 7/5/2011 1:02:43 PM
Updated 9/22/2011 3:03:38 PM
9 Answers/Comments
Get an answer
New answers
Rating
0
hi
Added 7/20/2011 2:40:48 AM
0
helloo
Added 9/22/2011 2:16:50 PM
0
fvck you
Added 9/22/2011 2:17:31 PM
0
i dont want to
Added 9/22/2011 2:18:14 PM
0
ok
Added 9/22/2011 2:18:29 PM
0
1) to find the surface area of the pyramid, you will need the area of the 4 triangles and the base find the area of the base since the perimeter of the base is 40 each side will be 10 cz [40/4 =10] the area of a square is length x width [ l x w] 10 x 10 = 100 *the area of the base is 100 square inches now, find the area of the 4 triangles this will be quite confusing cz it involve with visualizing a pyramid we know that the height is 12 inches and one side of the base is 10 imagine u are looking through a pyramid, the height will be at the middle [ the center of the base connecting to the sharp corner at the top ] now imagine that there is a triangle inside the square pyramid the height of the triangle is the height of the pyramid, the base of the triangle is half the length of the one side of the base, the hypothuse of the triangle is the slant height of one of the triangles of the pyramid what i just wrote is very confusing, it is hard to understand try to draw it out do u know what is the slant height? ignore the triangle that i wrote about before look back at the pyramid, there are four triangles the slant height will be the height of a triangle but the slant height is the hypothuse for the triangle inside the one that i told u to visualize ALL THat trash that i talk about is very confusing and may not be helpful to u, anyway i will continue to find the surface area of pyramid okay, now we have the area of the base which is 100 square inches we need to find the area of one triangle talking back to the imaginary triangle inside the pyramid find the slant height the height is 12, the base of triangle is 5 cz [the base is half the length of one side of the pyramid which is 10/2] now we find the hypothuse/slant height 12^2 + 5^2= 144 + 25 = 169 square root of 169 = 13 *13 is the slant height looking back at the non-imaginary triangle we know the height of the triangle is 13 and the base is 10 the area of ONE triangle is (13 x 10) / 2 = 65 square inches the area of the FOUR triangles is 65 x 4 = 260 *****the SURFACE area is 260 +100= 360 square inches 2) volume of the pyramid is (1/3)bh base is 10 height is 12 plug in those in the equation (1/3) x 10 x 12 = (1/3) x 120 = 40 *** volume = 40 cubic inches i don't think i helped but i tried =]
Added 9/22/2011 3:00:58 PM
Comments
stay cool, man.
Added 9/22/2011 2:54:31 PM
that is way better than just try. I think you did your best.
Added 9/22/2011 3:03:38 PM
Add an answer or comment
Log in or sign up first.
17,420,696 questions answered
Popular Conversations
All of the following physical reactions occur when our ...
Weegy: What are your choices? User: A. dilating pupils B. increasing heartbeat C. increasing digestion D. increasing ...
9/17/2014 12:53:07 AM| 5 Answers
Which of the following areas would most likely have the deepest layer ...
Weegy: Which of the following areas would most likely have the deepest layer of topsoil? b. beach User: Which layer ...
9/17/2014 1:00:32 AM| 4 Answers
Is the underlined word a predicate nominative or a predicate ...
Weegy: "The workers remained calm during the fire drill." In this sentence the word "calm" is the predicate adjective. ...
9/17/2014 2:01:58 PM| 3 Answers
. Command is: A. Assumed by the individual who is the highest ranking ...
Weegy: Command is Directing, ordering, or controlling by virtue of explicit statutory, regulatory, or delegated ...
9/17/2014 1:35:53 AM| 2 Answers
When communicating, ICS requires the use of
Weegy: The Incident Command System (ICS) is "a systematic tool used for the command, control, and coordination of ...
9/17/2014 1:36:41 AM| 2 Answers
chevorlet
Weegy: Find which Chevy van and you will find what the mpg is. User: chevy silverado
9/17/2014 3:00:05 PM| 2 Answers
What court case upheld the use of implied powers by Congress in any ...
Weegy: The implied powers doctrine, upheld in McCulloch v. Maryland, gives Congress the power to create a national bank ...
9/17/2014 2:06:27 PM| 2 Answers
In "Paul's Case," the story suggests that Paul's "dark corner" ...
Weegy: In "Paul's Case," the story suggests that Paul's "dark corner" represents his? contempt for authorityWrong the ...
9/17/2014 1:43:59 PM| 2 Answers
The biggest cause of foodborne illness is
Weegy: Foodborne illness (also foodborne disease and colloquially referred to as food poisoning)[1] is any illness ...
9/17/2014 4:32:41 PM| 2 Answers
The Three-Fifths Compromise dealt with the issue ...
Weegy: The Three-Fifths Compromise dealt with the issue of taxation. User: The convention decided to make a ...
9/17/2014 4:38:35 PM| 2 Answers
Weegy Stuff
S
R
L
1
1
P
C
1
P
1
1
L
P
C
P
C
1
P
C
L
P
C
1
P
C
P
C
P
C
L
Points 1949 [Total 26348]| Ratings 4| Comments 1909| Invitations 0|Offline
S
L
1
L
P
C
1
Points 1780 [Total 8311]| Ratings 8| Comments 1700| Invitations 0|Online
S
L
1
1
1
1
L
1
L
Points 1388 [Total 11168]| Ratings 0| Comments 1388| Invitations 0|Offline
S
L
C
P
C
1
L
L
P
C
1
Points 1355 [Total 17294]| Ratings 10| Comments 1255| Invitations 0|Offline
S
L
P
C
L
P
C
P
C
L
P
C
P
C
P
C
Points 1318 [Total 18490]| Ratings 3| Comments 1288| Invitations 0|Offline
S
1
L
1
L
P
P
L
Points 513 [Total 11759]| Ratings 0| Comments 513| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
L
P
C
P
C
P
C
P
C
Points 503 [Total 19034]| Ratings 0| Comments 503| Invitations 0|Offline
S
L
Points 449 [Total 1119]| Ratings 0| Comments 449| Invitations 0|Offline
S
1
L
L
Points 396 [Total 5520]| Ratings 4| Comments 356| Invitations 0|Offline
S
P
C
L
P
L
1
Points 45 [Total 6102]| Ratings 1| Comments 35| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.