Question

Find the surface area of the right triangular prism below.

Answer 1

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/assessments/SA-SurfaceAreaandVolumeUnitExam/Geometry_9_Exam_FINAL_LT_060909_6q.jpg

Answer 2

@triciaal

Answer 3

do you have the formula for the area of a right triangular prism?

Answer 4

bh+2ls+lb

Answer 5

the surface areaS of a right prism can be found using the formula 2B + Ph where B is the base P the perimeter and h the height

Answer 6

let me look at the diagram now and see what we were given

Answer 7

Okay.

Answer 8

it looks like the base is 8 by 3 do you have the height?

Answer 9

Don't you mean 4 by 3? No I don't have the height, that's what we're trying to find.

Answer 10

the question ask to find the area

Answer 11

Oh wait yes, sorry.

Answer 12

Are you there?

Answer 13

@satellite73

Answer 14

is there a 4 on the edge of the diagram that could be the height

Answer 15

sorry my sister called from out of state

Answer 16

No worries!

Answer 17

perimeter of base = 2(8 + 3) = 22
area of base = 8 * 3 = 24
using h = 4
plugging in the formula S = 2B +Ph
S = 2*24 + 22*4 = 48 + 88 = 136

Answer 18

Wait, 136 is the answer?

Answer 19

yes using h = 4
i don't see the edge of the diagram

Answer 20

That's not a given answer...

Answer 21

can you repost the diagram (in the middle) so i can check the dimensions.
the formula is correct and the method is correct

Answer 22

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/assessments/SA-SurfaceAreaandVolumeUnitExam/Geometry_9_Exam_FINAL_LT_060909_6q.jpg

Answer 23

the edge is cut off in the diagram. recheck the calculation and if the numbers are in the wrong place will get the wrong answer. sorry need to see the diagram
is 108 one of the choices?

Answer 24

Yes, 108 is an answer!

Answer 25

I just got help from a teacher. Than you so much for your help!

Answer 26

welcome