OpenStudy (fionacndg):

A right, rectangular prism has a length, width, and height that are all equal. The volume of the prism is 1331 cubic meters. Find the surface area of this prism.

3 years ago
OpenStudy (fionacndg):
3 years ago

OpenStudy (mokeira):

first find the length of one side. because the sides are all equal, \[v=(side) \times (side) \times (side)\] so basically \[v=(side)^{3}\] so \[1331=(side)^{3}\] to get one side, find the cube root \[side=\sqrt[3]{1331} = 11\] so surface area will be \[(11 \times 11)\] for one face. but there are 6 faces so multiply your answer by 6

3 years ago
OpenStudy (fionacndg):

Can you help me with this? Find the area and perimeter of the polygon with vertices A( 3, 0), B(3, 4), C(5, 1), and D(-1,-3 ). a. area = 26 units ; perimeter = units b. area = 13 units ; perimeter = units c. area = 13 units ; perimeter = units d. area = 26 units ; perimeter = units

3 years ago
OpenStudy (mokeira):

It is area of one face..but there are 6 faces @jhonyy9

3 years ago
OpenStudy (jhonyy9):

yes sotty i not have learned your next lines

3 years ago
OpenStudy (mokeira):

first plot it to see what shape it is

3 years ago
OpenStudy (fionacndg):

@ mokeria okay...

3 years ago
OpenStudy (fionacndg):

|dw:1407771811711:dw| kinda like this shape @Mokeira

3 years ago
OpenStudy (mokeira):

thats not right..what are the coordinates of D?

3 years ago
OpenStudy (fionacndg):

-1, -3 @Mokeira

3 years ago
OpenStudy (mokeira):

mine looks like this |dw:1407772241545:dw|

3 years ago
OpenStudy (mokeira):

have you plotted D well?

3 years ago
OpenStudy (fionacndg):

no

3 years ago
OpenStudy (mokeira):

did you get something like mine

3 years ago
OpenStudy (fionacndg):

now i did get something that looks more like yours

3 years ago
OpenStudy (mokeira):

yeah... divide it insuch a way that you get two triangles...then work with those to make things easier...I have to go but when i get back i will check in on you

3 years ago
OpenStudy (fionacndg):

oh gosh. okay well I don't know if i can do this I have no idea how to do this at all... thanks for the help anyway

3 years ago
OpenStudy (mokeira):

@fionacndg you there?

3 years ago
OpenStudy (fionacndg):

@Mokeira yes I am

3 years ago
OpenStudy (mokeira):

have you solved it or do you still need help?

3 years ago
OpenStudy (fionacndg):

I still need help

3 years ago
OpenStudy (fionacndg):

hello?

3 years ago
OpenStudy (mokeira):

im sending you somethin now

3 years ago
OpenStudy (mokeira):

you might have to zoom in

3 years ago
OpenStudy (mokeira):

still working on area

3 years ago
OpenStudy (fionacndg):

okay... so here are answers..

3 years ago
OpenStudy (mokeira):

im wrong then..let me try get some people here

3 years ago
OpenStudy (mokeira):

@SolomonZelman @MilenaSaeger @phi

3 years ago
OpenStudy (fionacndg):

@ajprincess

3 years ago
OpenStudy (fionacndg):

@amistre64 @abb0t

3 years ago