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ErinWeeks
Group Title
Find the surface area of the figure to the nearest whole number.
PLEASE HELPPPP
 one year ago
 one year ago
ErinWeeks Group Title
Find the surface area of the figure to the nearest whole number. PLEASE HELPPPP
 one year ago
 one year ago

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ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
A. 310 ft2 B. 158 ft2 C. 135 ft2 D. 74 ft2 I thought it was C but it was wrong _
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
the back side in the image is very confusing :/
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
its 2.5 and 3.3
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
hint: split it into two objects. find the surface area of the top triangle pyramid and add it to the surface area of the square prism
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
im still confused
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
but you understand what I said?
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
i dont really _
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
k wait, let me work through the whole thing first then I'll explain it to you.
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
okay thank you
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
dw:1357770316535:dw see I split the two? this is what I meant and excuse my drawing. Note: we do not need to find the bottom base of the pyramid and top of the square prism, as it is not accounted towards the total surface area. (It's the part where they are glued together if you may).
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
well i can to see 2 solids... the piramid and the cube.. so the piramid area is \[\frac{ 1 }{ 2 }* perimetre*face length\]. in your piramid \[\frac{ 1 }{ 2 } \times 18\times 3.3 \] and the cube surface
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
for the second formula i got 29.7 ... i dont know how to do the 1st one
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
yes 29.7 is right for the top(pyramid).
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
okay now can you explain how to do the bottom
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
for the bottom(square prism) it is even easier. 2(4.5 x 6 + 4.5 x 6) + (4.5 x 4.5)
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
this is because the top of the square prism(where it needs to be used to be stuck against the bottom part of the pyramid) is not accounted for.
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
i got 74.25 now what ??
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
add them together.
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
to get your final answer.
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
i got 103.95 but thats not a choice
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
your 74.25 you got is wrong, try again.
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
it should be 128.25
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
no, it is \[4(4.5*6)+ 2(4.5*4.5)\]
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
with @ankolix formula i got 142.5
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
@ankolix I don't think you understand the concept that you only need 4.5 x 4.5 once not twice.
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
@JayDS my answer and your answer are both not an option
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
yeah.. ivemistake
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
please tell me the options.
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
A. 310 ft2 B. 158 ft2 C. 135 ft2 D. 74 ft2
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
and you made a calculation error before, so please be careful when entering it in the calculator.
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
is 4(4.5*6)+(4.5*4.5)+29.7=157.95.. option B
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
yep, option B.
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
using my calculation you will get 157.95. and why is it not exact? because probably when they calculated they used more decimal places which resulted them to get a more accurate answer but we have been only given that, so we just those figures in the picture.
 one year ago

ankolix Group TitleBest ResponseYou've already chosen the best response.1
medal for gratitude ;)
 one year ago

ErinWeeks Group TitleBest ResponseYou've already chosen the best response.0
okay thank you so muchh..
 one year ago

JayDS Group TitleBest ResponseYou've already chosen the best response.1
@ankolix, I would like to say you deserve the medal for trying but you have copied off me but good job.
 one year ago
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