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Rina8888 [55]
3 years ago
12

Find the lateral surface area of the triangular prism shown below. PLS HELP

Mathematics
2 answers:
FrozenT [24]3 years ago
8 0
It’s d I’m very sure of it !
lozanna [386]3 years ago
5 0
The answer is D 972cm.
There are two triangles each 54cm squared (9x12/2= 54)
There is one 24x15 rectangle which equals 360cm(2)
There is also one 24x12cm rectangle that equals 288cm(2)
The last shape is a 9x24 rectangle which equals 216cm(2)



54 + 54 + 360 + 288 + 216 = 972cm(2)
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Step-by-step explanation:

Given

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\therefore 99=x(x+2)\\\Rightarrow 99=x^2+2x\\\Rightarrow x^2+2x-99=0\\\Rightarrow x^2+11x-9x-99=0\\\Rightarrow (x+11)(x-9)=0\\\Rightarrow x=-11,9

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