A pyramid or triangular prism is a polyhedron that has a base, which can be any polygon, and three or more triangular faces that meet at a point called the vertex.
<u>Explanation:</u>
- These triangular sides are sometimes called the lateral faces to distinguish them from the base.
- It is a polyhedron that has a base, which can be any polygon, and three or more triangular faces that meet at a point called the vertex.
- The base of the triangular prism is in the shape of a quadrilateral and the lateral face is in the shape of a triangle.
Y= 2/3x + 10 (or 11?) is the equation
Step-by-step explanation:
let width be x
length = 6+x
x times 6+x=135
2x+6=135
2x=135-6
129/2=x
64.5
Easy peasy
just subsitute I(x) for the x in the h(x) so
h(I(s))=-(2s+3)^2-4
distribute and simplify
h(I(s))=-(4s^2+12s+9)-4
h(I(s))=-4s^2-12s-9-4
h(I(s))=-4s^2-12s-13
