The answer would be seven point five
Y=mx+b
m=slope
b=yint
slope=5/6
ying=-3
equation is y=5/6x-3
<h2><u>Question</u>:-</h2>
The measurement of the three interior angles of a quadrilaterals are: 85 °, 54 ° and 96 °, what is the measurement of the fourth angle?
<h2><u>Answer</u>:-</h2>
<h3>Given:-</h3>
The measurement of the three interior angles of a quadrilaterals are: 85 °, 54 ° and 96 °
<h3>To Find:-</h3>
The measurement of the fourth angle.
<h2>Solution:-</h2>
By angle sum property of a quadrilateral,
Sum of all the interior angles = 360 °
So, let the fourth angle be x
85 ° + 54 ° + 96 ° + x = 360 °
235 ° + x = 360 °
x = 360 ° - 235 ° = 125 °
<h3>The measurement of the fourth angle is <u>1</u><u>2</u><u>5</u><u> </u><u>°</u>. [Answer]</h3>
Answer:
<u>See below:</u>
Step-by-step explanation:
Let the angles be 5x , 4x , 3x.[Since the angles are in ratio 5:4:3 ] respectively.
We know that sum of all angles of a triangle is 180°.
So,

Now Find the value of x of this equation.





Now,
Multiply each ratio given by 15 which is the value of x we got.
That is;



Hence,the measurements of the angles of the triangle would be 75°[First Angle],60°[Second angle],and 45° [Third Angle].

I hope this helps!
Let me know if you have any questions.