See attached the question is in an image attached

30.51 units^2

Step-by-step explanation:

Well to find the area of a triangle without height we use the following formula,

To find S we use the following formula,

So a b and c are the sides of a triangle, we'll start with the left triangle.

S = 1/2(7 + 5.22 + 7.4)

S = 1/2(19.62)

S = 9.81

Now we can plug in 9.81 for S,

But we can just simplify that to the nearest hundredth place which is,

17.46.

Now for the next triangle,

Plug in 10.305 for S,

A = 13.053463807549

We can round it to the nearest hundredth,

A = 13.05

So we just add 17.46 + 13.05

= 30.51 units^2

Thus,

the area of the figure is 30.51 units^2.

Hope this helps :)

i would say c is the best answer, hope it's right!

good luck! =)

cutie~