we know area of the triangle portion of this shape is 45 cm. By reasoning I can assume the length NO is the height of your figure. therefore the ate of the SQUARE part of this shape is (15 * 15) = 225 cm squared.
6+2/3% <--- Given (6+2/3)/100 <--- Definition of percent (20/3)/100 <--- Putting the top into an improper fraction 20/300 <--- Dividing the fractions 1/15 <--- Simplifying the fraction
