In need of help!!!! It would be really helpful

Mathematics

1 answer:

irinina [24]3 years ago

5 0

Answer:

The answer is 17.

Step-by-step explanation: The reason for the answer 17 is to find the average or the middle line in the trapezoid you add the top line and the bottom line. After you add those two together you get 34. Then you divide it by 2 which you get 17. Sorry I answered this late.

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A rectangle's width is 5 feet less than its height. If the area of the rectangle is 564 square feet, what is its length, in feet

larisa86 [58]

We can set up an equation: x * (x + 5) = 564, where x is the length of the rectangle we are trying to solve. Using the quadratic formula to solve this, we eventually come up with approximately 21.38 as a value for x. We can verify this by typing 21.38 * (21.38 + 5) into a calculator and seeing that it approximately equals 564.

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2 years ago

What is the sum of the interior angles of the polygon shown below

DanielleElmas [232]

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).