Question

For a triangle with side lengths 1.5 feet, 2 feet and 3 feet, the area of the triangle is:

Answer 1

Hi

Answer 2

Are you Here Radar?

Answer 3

Use the formula for calculating area of a triangle when the three sides are known..
First compute s. s is the value of the perimeter divided by 2. In this problem the sum of the sides are: 1.5+2+3=6.5 ft. So s=3.25

Answer 4

Thanks

Answer 5

Yes I am here, are we having fun yet?

Answer 6

No, geometry is hard, I have this question on a quiz, it does not list this answer.

Answer 7

Here is the formula:\[A=\sqrt{s(s-a)(s-b)(s-c)}\]
Where a, b, c are the sides

Answer 8

Are you sure, that is the answer?

Answer 9

That is the formula. plug in values s=3.25, a=1.5, b=2, and c=3.

Answer 10

ok, maybe it is none of them, since I do not show your answer.

Answer 11

\[\sqrt{3.25(3.25-1.5)(3.25-2)(3.25-3)}\]

Answer 12

I am having a hard time with this open book test lol, they are the worst

Answer 13

\[\sqrt{3.25(1.75)(1.25)(0.25)}\]

Answer 14

using my calculator i get:\[\sqrt{1.77734375}\]

Answer 15

ok

Answer 16

that would be: 1.33317 sq ft

Answer 17

Better double check my figures cdunn

Answer 18

lol

Answer 19

I think you are right

Answer 20

I have 19 replies, how can I see the rest of them?

Answer 21

are you looking at the open study web page, I am and I see all 20 replies

Answer 22

I cannot see them

Answer 23

maybe if you refresh your browser

Answer 24

strange, I cannot see them, but their answer is the same as your answer?

Answer 25

ok good luck with it. I got that formula for area from a very old text. bye

Answer 26

thanks