The area of the blanket is 4.05 sq. meters.
Subtract the sum of the angles from 180 degrees to get the missing angle. For example if a triangle in a quadrilateral had the angles of 30 and 50 degrees, you would have a third angle equal to 100 degrees (180 - 80 = 100).
1) In school, you will encounter percentages on class assignments to see how much progress you made in an subject.
2) On a cell phone, you encounter percentages by how much your cell phone is charged in order to know if you need to charge the battery or not.
There's a number missing from the question. It's supposed to be right before the word "times".
If it were there, the answer would be (5 times that number).
The way the question is written, without that number, there's no answer.
