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Mathematics 15 Online
OpenStudy (jirehnbush):

find the surface area of the prism.

OpenStudy (jirehnbush):

OpenStudy (jirehnbush):

@ShelbyWyatt

OpenStudy (shelbywyatt):

find the area of each side

OpenStudy (shelbywyatt):

9*5=45*2=90

OpenStudy (shelbywyatt):

12*5=60*2=120

OpenStudy (shelbywyatt):

12*9=108*2=216

OpenStudy (shelbywyatt):

add 90 120 and 216

OpenStudy (jirehnbush):

426

OpenStudy (shelbywyatt):

yeah

OpenStudy (jirehnbush):

find the surface area of the cylinder to the nearest tenth of a square unite.

OpenStudy (jirehnbush):

@ShelbyWyatt

OpenStudy (shelbywyatt):

k sorry for late

OpenStudy (shelbywyatt):

A=2πrh+2πr2

OpenStudy (shelbywyatt):

which is 4*12.4=49.6 49.6*3.14=155.744*2=311.488

OpenStudy (shelbywyatt):

now 4*4=16 16*3.14=50.24 50.24*2=100.48

OpenStudy (shelbywyatt):

now add 311.488 to 100.48

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