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alekssr [168]
2 years ago
14

The lengths of the sides of a triangle are ​9, 12​, and 14. Classify the triangle as​ acute, right, or obtuse.

Mathematics
1 answer:
Ne4ueva [31]2 years ago
7 0

Answer:

Step-by-step explanation: sleep

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Geometry ( WILL GIVE BRAINY)
Step2247 [10]

Answer:

1:

we have a rule that is (n-2)×180

while n = number of sides

2:

exterior angle of a polygon = 360 ÷ number of sides

so 360÷25=14.4

3:

octagon is 8 side, so as we said: (8-2)×180 = 1080

4:

lets make an equation, we know that (n-2)×180 = the sum

so (x-2)×180=720

180x -360 = 720

180x = 1080

x=6

8 0
3 years ago
Read 2 more answers
PLS HELP NOW I HAVE LESS THAN 5 MIN
allochka39001 [22]

The answer is C

I hope i helped you lol

5 0
3 years ago
15. Find the value of x.<br> (68 - x)<br> 3x
masha68 [24]

Answer:

17=x

Step-by-step explanation:

In this case, we need to use Vertical Angles Theorem to solve this problem. Basically, because of the position of the angles, they are congruent.

68-x = 3x

Add x to both sides

68=4x

Divide by 4

17=x

Hope this helps!

3 0
3 years ago
Read 2 more answers
18.
nikitadnepr [17]

Answer:

B

Step-by-step explanation:

\sin{x}=\frac{5}{13}, \cos{x}=\sqrt{1-(\frac{5}{13})^2}=\frac{12}{13}

\sin{y}=\frac{8}{17}, \cos{y}=\sqrt{1-(\frac{8}{17})^2}=\frac{15}{17}

\cos(x+y)=\cos{x}\cos{y}-\sin{x}\sin{y}\\=\frac{12}{13}\times\frac{15}{17}-\frac{5}{13}\times\frac{8}{17}\\=\frac{140}{221}

3 0
2 years ago
Sally has a clock with a minute hand that extends to the clock's edge. The 10 points
alina1380 [7]

Answer:

no se ingles así que no se pero te doy gracias por los puntos

7 0
2 years ago
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