Let's see what to do buddy...
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Step (1)
We know that the sum of the interior angles of any n-sided figure is obtained from the following equation :

Our figure has 5 sides ;
So , sume the interior angles of it equals :

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Step (2)
First look at the photo which I post.
According it we have :



Subtract the sides of the equation minus 465 :


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And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Since this is a triangle all the angles within the triangle add up to 180 degrees so....
82+(9x+2)+(7x)=180
82+2+16x=180
16x+84=180
16x=96
X=6
If we plug in X to angle(9x+2) and angle (7x) we will get 56 and 42. We can get angle 2 by subtracting 180-42 which is 138
FINAL ANSWER: 138 degrees
Answer:
x=12
Step-by-step explanation:
The right side is a right triangle
The base is 1/2 of the bottom or 5
The height is x and the hypotenuse is 13
We can use the Pythagorean theorem
a^2 +b^2 = c^2
5^2 +x^2=13^2
25+x^2 = 169
Subtract 25 from each side
25-25+x^2 = 169-26
x^2 =144
Take the square root of each side
sqrt(x^2) = sqrt(144)
x= 12
it is 3 because if it has infinte solutions than it is = to 0 and 1 and infinite solutions