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gtnhenbr [62]
3 years ago
14

Help please! Thanks.

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
5 0

Answer:

6a is the answer I believe.

If i'm wrong correct me in comments.

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Calculate the sum of the interior angles of the following polygon 6 sided 15 sided and 3 sided​
Dvinal [7]

Answer:

720°, 2340°, 180°

Step-by-step explanation:

Look at the attached image of a regular hexagon.  I drew all possible lines from a vertex to other vertices (AC, AD, AE).  Drawing in all those diagonals splits the hexagon into 4 triangles, and adding up the measures of all the triangle angles would account for all the interior angles of the hexagon.

♦  Four triangles have an angle sum of 180° x 4 = 720° (180° in each triangle).

See attached image2 to see what happens in an octagon.  There are six triangles formed, so the total of all interior angle measures is 6 x 180° = 1080°.

What about a 15-sided regular polygon?  How many triangles would be formed by putting in all the diagonals coming from one vertex?  There will be 2 fewer triangles than the number of vertices, 13.

♦  The total of interior angle measures in a 15-gon is 13(180°) = 2340°

♦  A polygon with 3 sides is a single triangle; interior angle sum = 180°

3 0
3 years ago
Which expression is equivalent to (8^2)−4?
stealth61 [152]
(8^2)^{-4}=8^{2\cdot(-4)}=8^{-8}=\dfrac{1}{8^8}=\dfrac{1}{8\cdot8\cdot8\cdot8\cdot8\cdot8\cdot8\cdot8}\\\\Used:\\(a^n)^m=a^{n\cdot m}\\\\a^{-n}=\dfrac{1}{a^n}\\\\\underbrace{a\cdot a\cdot a\cdot a\cdot...\cdot a}_{n}=a^n
4 0
4 years ago
Read 2 more answers
What's the square root of 100?
Assoli18 [71]
10 hope it helps you out

3 0
4 years ago
Read 2 more answers
In a circle, a chord of 50 cm bisects a chord of 40 cm. Find the length of the longer segment of the 50 cm chord.
Andreyy89

Answer:

<u>The length of the longer segment of the 50 cm chord = 40</u>

Step-by-step explanation:

let the length of the longer segment of the 50 cm chord = x

so, the other segment = 50 - x

A chord of 50 cm bisects a chord of 40 cm

using the Intersecting Chords Theorem

so, x(50-x) = 20 * 20

50x - x² = 400

x² - 50x + 400 = 0

(x - 40)(x - 10) = 0

x = 40 or x = 10

<u>So, the the length of the longer segment of the 50 cm chord = 40</u>

8 0
3 years ago
Solve |-x+ 5| = |3x – 3| by graphing.
svlad2 [7]

Answer:

your points should be -1 and 2

Step-by-step explanation:

hope this helps :)

7 0
3 years ago
Read 2 more answers
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