Area is base times height, 0.3 times 0.35 is 0.105. Hope this helps!!!
Answer:
The length of FG is
.
Step-by-step explanation:
Since the altitude of the triangle bisects the third side, triangle FGH is isosceles.
Therefore 
This implies that,

This is a linear equation where we easily solve for
.
We group like terms to get,


We divide both sides by 2 to obtain,
.
The length of FG is

The Pythagorean theorem tells you that distance is
.. √((-24)^2 +32^2)) = √(576 +1024) = √1600 = 40
0.78 - (1 - 0.34) = 0.78 - 0.66 = 0.12
The difference in lenght is 0.12m.