Question

MEDAAL AND FAN



What is the surface area of the triangular prism shown?


860 ft 2
920 ft 2
1,040 ft 2
760 ft 2

Answer 1

@Mr.ClayLordMath

Answer 2

@ajprincess @hartnn @dpasingh

Answer 3

hmm i haven't solved that for while i have to review this

Answer 4

hartnn can you help her?

Answer 5

if you count surfaces, there are 2 right triangles, 2 rectangles and one base
can you find area of any of these ?

Answer 6

the base is also a rectangle , if you could observe...

Answer 7

ok...

Answer 8

area of a triangle=1/2 *bh

Answer 9

so i need to do what?

Answer 10

what formula? how can I solve it?

Answer 11

let me take if further,
2 right triangles, height =15, base = 8
Area of a triangle = 1/2 * base * height

All 3 Rectangles have different dimensions
Area of rect = width * length

Answer 12

good...so i need to multiply the base heigh lenght and width

Answer 13

?

Answer 14

so your total area=2*area of triangle+area of r1 +aarea of r2 + area of r3.
where r1,r2 and r3 are the three rectangles

Answer 15

first find area of 2 triangles = 2* (1/2 * 15 * 8)=...?
then find dimensions of each rectangle,
one rect has , w=15,l=20, Area = 15*20 =.. ?
other has, w=17, l=20, Area = 17*20 = ... ?
lastly, smallest one, the base, has w=8,l=20, Area = 8*20 =...?

Answer 16

Add all these to get total surface area

Answer 17

ok just a sec

Answer 18

1= 120
dimensions=340??
area=300
area2=340
area3=160

Answer 19

correct?

Answer 20

all are correct :)
just add them

Answer 21

120+160+340+300

Answer 22

ok...thanks
answer = 920?

Answer 23

and i'm already your fan

Answer 24

correct!
for both :)