Im pretty sure you just multiply 12 by 108, in that case there would be 2160 rows
<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,



Answer:
360-(124+124)= 360-248=122 divided by 4=30.5