Help with 2 questions
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Help with 2 questions
This is my first post on this forum. I needed help with 2 questions.
[img]F:\Question%201[/img]
[img]F:\Question%202[/img]
I have tried to paste the images.
Thank You
[img]F:\Question%201[/img]
[img]F:\Question%202[/img]
I have tried to paste the images.
Thank You
Re: Help with 2 questions
Hi and welcome
Sorry but it hasn't worked.
You could quote papers and q numbers or do a search for
the questions by paper number and q number. They may have been answered already.
Sorry but it hasn't worked.
You could quote papers and q numbers or do a search for
the questions by paper number and q number. They may have been answered already.
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- Posts: 24
- Joined: Wed Sep 12, 2012 8:02 pm
Re: Help with 2 questions
it's from the Habs 2007 paper Questions 29 & 30. Can't copy & paste as the images are not being copied
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- Posts: 24
- Joined: Wed Sep 12, 2012 8:02 pm
Re: Help with 2 questions
let me try if this works
file:///F:/Ques%201.jpg
file:///F:/Question%202.jpg
file:///F:/Ques%201.jpg
file:///F:/Question%202.jpg
Re: Help with 2 questions
paper downloadable from here
Q29
Figure 1: 4 Nodes 4 Regions 6 Arcs
Figure 2: 6 Nodes 8 Regions 12 Arcs
Figure 3: 2 Nodes 1 Regions 1 Arcs
Figure 4: 7 Nodes 5 Regions 10 Arcs
Arcs = Nodes + Regions -2
Q30
How many diagonals does a hexagon have? 9
How many diagonals does an octagon have? 20
Complete the following table:
Number of sides = 3 Number of diagonals = 0
Number of sides = 4 Number of diagonals = 2
Number of sides = 5 Number of diagonals = 5
Number of sides = 6 Number of diagonals = 9
Number of sides = 7 Number of diagonals = 14
Number of sides = 8 Number of diagonals = 20
Number of sides = n Number of diagonals = (n-3)x(n/2)
Number of sides = 20 Number of diagonals = 170
from each vertex you can draw diagonals to each of the vertices except itself, and the two adjacent to it (which will form the sides of the polygon) - i.e. n(the number of vertices - which is the same as the number of sides) - 3
multiply this by the number of vertices
then divide by two as you would otherwise be counting each diagonal from both its source end and its destination end
hence (n-3)x(n/2)
Q29
Figure 1: 4 Nodes 4 Regions 6 Arcs
Figure 2: 6 Nodes 8 Regions 12 Arcs
Figure 3: 2 Nodes 1 Regions 1 Arcs
Figure 4: 7 Nodes 5 Regions 10 Arcs
Arcs = Nodes + Regions -2
Q30
How many diagonals does a hexagon have? 9
How many diagonals does an octagon have? 20
Complete the following table:
Number of sides = 3 Number of diagonals = 0
Number of sides = 4 Number of diagonals = 2
Number of sides = 5 Number of diagonals = 5
Number of sides = 6 Number of diagonals = 9
Number of sides = 7 Number of diagonals = 14
Number of sides = 8 Number of diagonals = 20
Number of sides = n Number of diagonals = (n-3)x(n/2)
Number of sides = 20 Number of diagonals = 170
from each vertex you can draw diagonals to each of the vertices except itself, and the two adjacent to it (which will form the sides of the polygon) - i.e. n(the number of vertices - which is the same as the number of sides) - 3
multiply this by the number of vertices
then divide by two as you would otherwise be counting each diagonal from both its source end and its destination end
hence (n-3)x(n/2)
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- Posts: 24
- Joined: Wed Sep 12, 2012 8:02 pm
Re: Help with 2 questions
Thank You Okanagan. I had worked out most of the answers but the relations were proving a real challenge.
Thank You so much again
Thank You so much again