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iragen [17]
3 years ago
12

Splitting a polygon into triangles is a method used in calculating the sum of the interior angles of a polygon. Using this metho

d, how many triangles does a 7-sided polygon contain?
A.
5.
B.
6.
C.
7.
D.
8.
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
5 0
Lets say that a quadrilateral has been divided into two triangles<span>, so the interior angles add up to 2 × 180 = 360°. This pentagon has been divided into </span>three triangles<span>, so the interior angles add up to 3 × 180 = 540°. In the same way, a hexagon can be divided into </span>4 triangles<span>, a 7-sided polygon into </span>5 triangles <span>etc.
so your answer is A. 5
(^>^)</span>
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