To solve for y, all you have to do is just separate r from all of the others and make it equal to the rest of the equation. So first it was, a=pi*r squared.
Divide by pi on each side,
a/pi=r^2
Take the square root of each side;
square root of (a/pi) =r
and that's all
Hope this helps.
"Enlargement" here implies that the two pentagons are similar. Because of similarity, the following equation of ratios must be true: 7/15 = x/7. Then 15x=49, and x = 49/15 = 3.27 cm, approximately.
Rounded to the nearest tenth, that comes to 3.3 cm.
The value of the angle y of the given line transversal is 45°
<h3>What is the transverse line theorem?</h3>
The transverse Line theorem states that If two parallel lines are cut by a transversal, then, Alternate Exterior Angles are congruent. If two parallel lines are cut by a transversal, then corresponding angles are congruent. Two lines cut by a transversal are parallel IF AND ONLY IF corresponding angles are congruent.
Now, from the question we are told that line m is parallel to line n which we see in the attached image.
Now, from the transverse Line theorem as defined above, we can say that the sum of y° and 135° will be equal to 180°due to both being opposite interior angles. Thus;
y = 180 - 135
y = 45°
Correct question is;
Find the value of y if m∥ n.
Read more about Transverse Line theorem at; brainly.com/question/11493301
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Answer:(2.2).
Step-by-step explanation: