27
18
----
45
GCF of 45 = 15
Here is a word document on Greatest Common Factors and how to solve it.
<u>Answer-</u>
<em>The area of QRS is </em><em>238.7</em><em> sq units.</em>
<u>Solution-</u>
According to properties of supplementary angles,

So,

As the sum of measurement of all the angles in a triangle is 180, so



Then the area of the triangle will be,



Each individual contributed $x
3x=$19.50
x=$6.50
Each friend contributed $6.50