@juicstice

What is the surface area of a triangular pyramid if each face has an area of 80 m2?

A.
320 m2

B.
20 m2

C.
240 m2

D.
160 m2

Question

@juicstice

What is the surface area of a triangular pyramid if each face has an area of 80 m2?
 
 A.
320 m2
 
 B.
20 m2
 
 C.
240 m2
 
 D.
160 m2

anonymous · Answer

@zzr0ck3r

anonymous · Answer

is it 80 divided by 2

ranga · Answer

How many triangular faces does a triangular pyramid have?

juicstice · Answer

no a triangular pyramid looks like a Egyptian pyramid so it has four triangles and the bas is a square. so it would be 80 x 4, but I'm not sure about how to find the base

anonymous · Answer

@ranga it has 4 faces

anonymous · Answer

80x4=320

ranga · Answer

Yes.

juicstice · Answer

does the base even count as a side here @ranga

ranga · Answer

Yes. http://mathworld.wolfram.com/TriangularPyramid.html

juicstice · Answer

then why would the answer choices not seem to include the base

ranga · Answer

A) 320 m^2.

juicstice · Answer

I guess it doesn't matter so nvm

juicstice · Answer

oh, okay so I was picturing it as a different kind of triangular pyramid

anonymous · Answer

so A thanks

ranga · Answer

yw.

anonymous · Answer

thanks 2 @Juicstice

juicstice · Answer

no problem. even thought I kinda messed up

anonymous · Answer

it is ok that is the story of my life LOL

juicstice · Answer

that's the story of everyone's life

anonymous · Answer

can u help with one more question

juicstice · Answer

yup

anonymous · Answer

The surface area of a rectangular prism is 15 m2. What is the surface area of this prism, measured in cm2?
 
 A.
1500 cm2
 
 B.
150,000 cm2
 
 C.
0.0015 cm2
 
 D.
0.15 cm2

juicstice · Answer

how many centimeters are in a meter

anonymous · Answer

B. right

juicstice · Answer

no, that's wrong, but can you tell me how many centimeters are in a meter

anonymous · Answer

100

juicstice · Answer

yes, so with knowing that can you tell me the answer

anonymous · Answer

A.

juicstice · Answer

yes

anonymous · Answer

thanks

juicstice · Answer

you're totally welcome, ma'am

ranga · Answer

The answer is B because of m^2.  When you square a dimension, the conversion factor will also be squared.
1 m = 100 cm
1 m^2 = 10000 cm^2.

anonymous · Answer

wait i was right

ranga · Answer

Yes.

juicstice · Answer

oh, crap, well I guess I got it wrong, really sorry about that :(

anonymous · Answer

it is ok

juicstice · Answer

I hate it when I get something wrong because then I'll feel bad about it

anonymous · Answer

please don't stress it is ok it is not like u messed up in open heart surgery

anonymous · Answer

LOL

juicstice · Answer

that is exactly why I can't be a surgeon haha

anonymous · Answer

hahahaha i Know right the same with me