Answer:
Construct the angle bisector of angle Y
Step-by-step explanation:
-An inscribed circle is defined as the largest circle that can be drawn within the boundaries of a plane figure.
-The first step in constructing an inscribed circle is to bisect any two angles of the plane figure, triangle in this case, as there intersection point will form the circle's center.
=>Hence, the first step is Construct the angle bisector of angle Y or Z or X( whichever you decide on).
The way I like to solve proportions is by cross multiplying and dividing. First yo multiply the diagonals and then you divide by the other number. So if your proportion is 7/5 = x/3, your equation would be 7*3/5. So 7*3 is 21, so your equation is now 21/5. With some long division, you'll see that 21/5 = 4.2 That's your answer, feel free to ask more questions if you need!!(: