Question

Find the surface area of the prism. A. 2299 mm2 B. 2954.5 mm2 C. 3173 mm2 D. 498,180 mm2

Answer 1

https://static.k12.com/calms_media/media/1394500_1395000/1394713/1/6668214b67bc455c9ab550a095c0f63c6f113eee/67457_FGA_U5_L6_V2_P.jpg

Answer 2

https://my.mixtape.moe/gjrzex.webm

Answer 3

um.....good?

Answer 4

it is good

Answer 5

just what dose it have to do with math

Answer 6

do you know where to start?

Answer 7

all i need is the area of the triangle

Answer 8

ive got evrything els

Answer 9

since it is a right-angle triangle you can use a simple formula:
half of the area of a rectangle (19mm x 23mm)
does this help?

Answer 10

ummm nope do you know the height?

Answer 11

oops how do i change my little grade thing on the list

Answer 12

no need for the height, just take the two shorter sides a, and b, imagine they are sides of a rectangle, then compute area of that rectangle. The triangle is just a half of that

Answer 13

the key is the angle between the two side - it's 90 degrees

Answer 14

so one is base and other is side?

Answer 15

and how do i change my little grade thing on the list

Answer 16

i clicked high im in middle

Answer 17

looking at your drawing: imagine you take another prism (identical dimensions) and put it together with the original - you will get a rectangular "column" right?

Answer 18

then you can easily calculate the area of the top and bottom - just multiply the sides (19x23)

Answer 19

then imagine away the extra prism - that's that half of the area

Answer 20

so 437?

Answer 21

yes, but for one triangle you still need to divide it by 2 ,, so 218.5

Answer 22

but since you care about top and bottom you will get the 437 in the total area anyway...

Answer 23

thanks

Answer 24

no prob