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Oxana [17]
3 years ago
6

How many triangles form by the diagonals from a fixed vertex has 11 12 13 14 15 sided polygon

Mathematics
1 answer:
djyliett [7]3 years ago
3 0
If we draw diagonals from a fixed vertex of a n sided polygon, there will be (n-2) number of triangles formed. 
So for n=11, number of triangles formed = 9
for n=12, number of triangles formed = 10
for n=13, number of triangles formed = 11
for n=14, number of triangles formed = 12
for n=15, number of triangles formed = 13

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Choose all the expressions with accurately written descriptions.
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4 0
3 years ago
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Step-by-step explanation:

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We can simply use unitary method or the ratio to find the answers of the questions asked in the statement.

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6 0
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