A <span> regular </span>icosahedron<span> is a 3D convex polyhedron with 20 faces, 30 edges and 12 vertices while a regular octahedron has 8 faces. A tetrahedron has 4 faces and is shaped like a pyramid. All of these have triangular bases. A regular hexahedron has six faces and a base of a square</span>
Answer:
May I have a photo?
Step-by-step explanation:
In this triangle, we know base & perpendicular are 300 & 400 'cause 500 is the longest side which is hypotenuse
Now, Area of a triangle = ab/2 = (300)(400)/2 = 120000/2 = 60000
As cost for 1 ft² = $0.60
cost for 60000 ft² = 60000 * 0.60 = $36000
In short, Your Answer would be Option A
Hope this helps!
