Answer:
Step-by-step explanation:
If perimeter is 28 then each side is 28/7=4ft These sides can be seen as the bases of seven triangles that make up the heptagon. The apothem, 4.2ft, is the height of each of those triangles. The total area will be the sum of the areas of those seven triangles.
A=7(bh)/2
A=(7(4)4.2)/2
A=58.8 ft^2
Answer:
BC = 4x-10
Step-by-step explanation:
is the midpoint of AC.
I think it’s C but I don’t know
Answer:
y = 8 root 2
Step-by-step explanation:
Since it is a 90-45-45 triangle, y is s root 2
s = 8
so, y = 8 root 2
The measure of angle 4 is 121 degrees
