7.2
1) Examining the picture, we can assume this is a Right Triangle, and then use the Pythagorean Theorem
a²=b² +c²
14² = 12² +c² The hypotenuse is the larger side a
196=144 +c²
196-144 = c²
52 =c²
√52 =√c²
c= √52
2) Rounding off to the nearest tenth we can write
c= √52 is approximately 7.2