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

Question

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] · Answer 1 · 2022-06-07T15:45:43+03:00

Lets say that a quadrilateral has been divided into two triangles, so the interior angles add up to 2 × 180 = 360°. This pentagon has been divided into three triangles, so the interior angles add up to 3 × 180 = 540°. In the same way, a hexagon can be divided into 4 triangles, a 7-sided polygon into 5 triangles etc.
so your answer is A. 5
(^>^)