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Mathematics 21 Online
OpenStudy (elisaneedshelp):

Can some1 help me find the surface area, volume, base area, and lateral SA of a triangular prism? Its urgent please

OpenStudy (elisaneedshelp):

@OrangeMaster would you be able to help me?

OpenStudy (anonymous):

If I had the measures.

OpenStudy (elisaneedshelp):

And i can provide those. the length of rectangle=7 base of triangle=6.4 base of angle of triangle=63 degrees

OpenStudy (elisaneedshelp):

thats all my teacher gave me

OpenStudy (anonymous):

It looks like it's getting into trigonometry because it wants you to find the other side lengths by yourself. I would be able to help if I knew the other sides, but I SUCK at trig. Sorry.

OpenStudy (elisaneedshelp):

what about a square pyramid with the edge of the base=7.5 and the leg of the isosceles triangle being 9.5?

OpenStudy (anonymous):

Ok, maybe. Just give me a sec.

OpenStudy (elisaneedshelp):

Thank you!

OpenStudy (anonymous):

For your trig question |dw:1399240787666:dw|

OpenStudy (anonymous):

|dw:1399240849074:dw|

OpenStudy (anonymous):

We need to find x so |dw:1399240882383:dw| We have one side it's adjacent the angle and x is opposite the angle so we will use tangent so tan=opposite/adjacent tan (63)=x/3.2 Multiply by 3.2 on both sides 3.2*tan(63)=x 6.3=x So the height of your triangle is 6.3

OpenStudy (elisaneedshelp):

Thank you cuz i didnt get how to get the height correctly :) but i still dont know how to get the base sides like the calculator asks for :/

OpenStudy (elisaneedshelp):

whats the difference between the length of the rectangle and then base of the triangle?

OpenStudy (elisaneedshelp):

length of the rectangle= 7and the base of triangle 6.4 idk how it will help me get the base sides for the calculator

OpenStudy (anonymous):

Here let me show you

OpenStudy (elisaneedshelp):

ok

OpenStudy (anonymous):

One question is the triangle an isosceles triangle or do you not know?

OpenStudy (elisaneedshelp):

the triangle on the triangular prism is unknown :/

OpenStudy (anonymous):

Ok.

OpenStudy (elisaneedshelp):

it might be equilateral

OpenStudy (anonymous):

Well we can't guess. It's whatever the question gives us.

OpenStudy (elisaneedshelp):

it doesnt give but based on the 3d figure she gave us to put together i can conclude its equilateral

OpenStudy (elisaneedshelp):

well tell me what you think http://miamibeachhigh.schoolwires.com/cms/lib07/FL01000126/Centricity/Domain/212/Triangluar_Prism.pdf

OpenStudy (anonymous):

Angles of an equilateral triangle are 60-60-60 always.

OpenStudy (elisaneedshelp):

did you see it?

OpenStudy (anonymous):

Yes it's a blank net for and triangular prism.

OpenStudy (elisaneedshelp):

yeah and what does the triangle look like to you

OpenStudy (elisaneedshelp):

is there anyway we can do it without knowing the type of triangle?

OpenStudy (anonymous):

It does look equilateral but it's not possible if you said that one of the angles is 63 degrees.

OpenStudy (elisaneedshelp):

this is the info she gave us

OpenStudy (elisaneedshelp):

mayb im saying something wrong

OpenStudy (anonymous):

https://join.me/459-124-922 If you click this link I will show you how to find some of the things I know.

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