karen read 20 pages of her book in half an hour.if she read for 3 hours at that same rate about how many pages of her book can k
1 answer:
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Answer:
720 degrees.
Step-by-step explanation:
The sum of the interior angles of a convex polygon with n sides is
180(n - 2) degrees.
In this case, n = 6 sides, so the angle sum is
180(6 - 2) = 180(4) = 720 degrees.
The reason this works is that if you draw a diagonal from one vertex to the others (see attached image), you get 2 fewer triangles than the number of sides. Each triangle contains a total of 180 degrees, so the total of all the interior angles is 180(n - 2).
Answer:
Step-by-step explanation:
To add matrices, we add the corresponding components.
The given matrices is
We add the corresponding components to get;
We simplify to get: