Answer:
Step-by-step explanation:
we know that
Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.
so
where
a, b and c are the length sides of triangle
s is the semi-perimeter of triangle
we have
<em>Find the semi-perimeter s
</em>
s=
Find the area of triangle
simplify
The answer is D because if you use the formula perfectly
Answer:
Step-by-step explanation:
Hard to say with the evidence you've given us, but if A = -4.8, then you're correct. Otherwise, probably not.