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Mathematics 9 Online
OpenStudy (anonymous):

What is the lateral area of the prism? Assume the figure is resting on its base. A. 300 cm2 B. 652 cm2 C. 880 cm2 D. 326 cm2

OpenStudy (anonymous):

i dont understand it can u please help me

OpenStudy (anonymous):

@Mehek14

OpenStudy (welshfella):

the lateral area is the area of the 4 vertical faces. area of each of these = length * width

OpenStudy (welshfella):

there are 2 of area 5 * 8 and 2 of area 5* 22

OpenStudy (anonymous):

i still didnt get the answer

OpenStudy (welshfella):

can you multiply 5 and 8 ?

OpenStudy (anonymous):

thats 40

OpenStudy (welshfella):

ok and theres 2 of these so that's an area of 80 cm^2 and the other 2 faces have area 5 * 22 can you work out the area of these 2 faces.

OpenStudy (anonymous):

5*22=110

OpenStudy (welshfella):

ok now multiply that by 2 because there are 2 faces with this same area

OpenStudy (anonymous):

220

OpenStudy (welshfella):

right now all you have to do is add 80 and 220 and you have the answer

OpenStudy (anonymous):

so the answer is D

OpenStudy (anonymous):

Thank you so much

OpenStudy (anonymous):

I mean A

OpenStudy (welshfella):

No not D 220 + 80

OpenStudy (welshfella):

correct

OpenStudy (anonymous):

thanks

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