I think it's D bc I looked it up in internet and it's what It gave me
Answer:
Quadrilaterals or Quadrilateral
Step-by-step explanation:
Quadrilateral = rectangle, parallelogram, square, and rhombus!
We know that
[the area of the root]=4*[area of one lateral triangle side]
area of one lateral triangle side=b*h/2
b=10 ft
h=9.4 ft
area of one lateral triangle side=10*9.4/2-----> 47 ft²
[the area of the root]=4*[47]-------> 188 ft²
the answer is
the area of the root is 188 ft²
Lets cut this shape into rectangles and triangles.
The rectangles will be 7x3 and 3x4
So that is 21 sq rt and 12 sq ft.
Now the triangles.
One will be 2*3/2 and the other will be 4*3/2
So that is 3 sq ft and 6 sq ft.
In total the hole is 42 sq ft.
Answer:20000
Step-by-step explanation:
30+1000+4000
