Answer:
Euler's Formula states that:
V -E +F = 2 meaning that the vertices minus the edges plus the faces of a convex polyhedron will always equal two.
So, for the initial question, we have 40 edges and 24 faces.
So, vertices = 2 + Edges -Faces
Vertices = 2 + 40 - 24
Vertices = 18
Source: https://www.1728.org/platonic.htm
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
5 x (8 - 3) +2
5 x (5) + 2
25 + 2
27
Hope that helps!
Answer:
see explanation
Step-by-step explanation:
Given
V = πr²h ( isolate h by dividing both sides by πr² )
= h
When V = 36π , r = 3 , then
h = 
= 
= 4 cm
You need to expand the brackets eg.
(w-9)8 basically means 8 x (w-9) = 8w-72
