Answer:
Area = 15.36 ft
Step-by-step explanation:
First find the area of the dotted line triangle using the formula: base x height x 1/2, which would be 1.2ft x 12.8 x 1/2 = 7.68ft.
Next, add another triangle at the top, mirroring the shown triangle, of the parallelogram.
Then, find the area of the shape as though it were a rectangle. (base x height) - 2.4 x 12.8 = 30.72.
Next, multiply the area of the invisible triangle by 2, 7.68 x 2 = 15.36ft
and Finally, subtract the area of the rectangle shape of the the sum of the two invisible triangles, 30.72 - 15.36 = 15.36ft
The area of the parallelogram is 15.36 ft.
The discriminant is b²-4ac
when the discriminant is 0, there is only one solution.
Answer:
8
Step-by-step explanation:
Area is 96, divide that by 4 triangles = Area is 24 per triangle
Area of a triangle = (0.5)(base)(height)
(0.5)(6)(x)=24
3x=24
x=8
