Question

HELP!
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

i need to find the triangle area

Answer 3

i can get evrything els

Answer 4

http://prntscr.com/9fulms

Answer 5

whats this for?

Answer 6

They're not the same heights right? Or are they?

Answer 7

the heits arnt there!

Answer 8

one approach: use the formula for the surface area and substitute the measurement you have
another approach: add the sum of the area for each of the 5 faces

Answer 9

um huh?

Answer 10

^^ Way better than me.

Answer 11

i cant do either of those becase the heith ist there for the triangles just the sides!

Answer 12

look at the shape! https://static.k12.com/calms_media/media/1394500_1395000/1394713/1/6668214b67bc455c9ab550a095c0f63c6f113eee/67457_FGA_U5_L6_V2_P.jpg

Answer 13

@emmynimmy

Answer 14

how do you find the area of a triangle? there are 2 of them
sides are rectangles area 38*30 + 19*38 + 23*38
with this my choice was close to C