http://prntscr.com/b78191

Question

kikuo · Answer

http://prntscr.com/b781zy Need help with these two things

welshfella · Answer

the lateral area consists of 5 isosceles triangles  of base length 8 in  and height 16 in.
Can you work out the area of one triangle?

kikuo · Answer

Not quite. 

@welshfella

welshfella · Answer

area = 1/2 * base * height

welshfella · Answer

|dw:1463957593215:dw|

kikuo · Answer

64

kikuo · Answer

@jhonyy9

jhonyy9 · Answer

how you get 64 ? 

A = b*h/2

kikuo · Answer

16x8/2 right?

jhonyy9 · Answer

you have wrote me in your meassge this : Do you remember me love?

but sorry i not can reply to you bc, my submit button to sending messages was blocked and i not can writing to nobody nothing - sorry

jhonyy9 · Answer

yes this is right so what will get from there ?

kikuo · Answer

It's okay! When I divide it by two, I get 64.

jhonyy9 · Answer

A = 16*8/2 = 16*4 = 64 

yes this is right

kikuo · Answer

Alright what's next?

jhonyy9 · Answer

ok. so you need calculi the lateral area of a penthgonal pyramid - yes ?

jhonyy9 · Answer

how many sides of this triangle have this penathgonal pyramid for what you have got now area above ?

kikuo · Answer

Hm, I'm not sure what you're saying?

jhonyy9 · Answer

how many sides has a penthagon ?

kikuo · Answer

five

jhonyy9 · Answer

exactly so than from this result that this penthagonal pyramid has 5 same triangle sides with area 64 what you got above - yes ?

jhonyy9 · Answer

so in this case than you multiplie this 64 by 5 will get the right answer sure easy 

do you can multiplie it now ?

jhonyy9 · Answer

are you here please ?

kikuo · Answer

Yes sorry haha 
@jhonyy9 


I got 320

jhonyy9 · Answer

ok. this is the right answer sure 

hope you understand it now 

yes ?

kikuo · Answer

Yes! Did you see my second question at the top?
@jhonyy9