Answer:
215.7176 ft^2
Explanation:
One step at a time.
First, let's figure out what the square area is.
12 ft by 15 ft = A=wl=15·12=180 ft^2
Now we add the tringle area: K = 35.7176 ft2
Add: 215.7176 ft^2
Sides:
a = 12 ft
b = 7.93725 ft
c = 9 ft
Other:
P = 28.9373 ft
s = 14.4686 ft
K = 35.7176 ft2
r = 2.46863 ft
R = 6 ft
Agenda:
A = angle A
B = angle B
C = angle C
a = side a
b = side b
c = side c
P = perimeter
s = semi-perimeter
K = area
r = radius of inscribed circle
R = radius of circumscribed c