There are several information's of immense importance already given in the question. Let us write them down first
Number of edges of the regular polyhedron (E) = 30
Number of vertices of the regular polyhedron (V) = 12
Let us assume the number of faces of the regular polyhedron = F
Then
V - E + F = 2
12 - 30 + F = 2
f - 18 = 2
F = 20
From the above deduction, it can be easily concluded that the number of faces of the regular polyhedron is 20.
Both lines intersect at the point
(-0.5, 0.5)
Answer:
8
Step-by-step explanation:
For number 1, the area is 48.
A = bh/2, so the height (12), times the base, divided by two equals the area (48).
Now we have: 48 = (b*12)/2
Calculate: 48*2 = 12b, so 96=12b, so b = 8
Answer:
k = 28
Step-by-step explanation: