The answer would be .80 or it may be 1
I'm pretty sure that it's b. That's assuming that you find the negative of b^2 and not the square of negative b.
Let us find the area of the triangle first.
6 x 8 / 2 = 24 ft²
Now we can do the semi circle. Note that it is a semi circle and not a circle.
1/2π(4²) = 8π = 25.12 ft²
Add the areas up to find the area for the figure.
24+25.12 = 49.12 ft²
6 vertices is in a triangular prism
Formula for circle:
(x - h)^2 + (y - k)^2 = r^2
Where (h, k) is the cry and r is the radius.
(x - - 1)^2 + (y - - 1)^2 = 1^2
(x + 1)^2 + (y + 1)^2 = 1
