Answer
c=12.2
Work Step by Step
The legs are 2.2 and 12. You have to find the hypotenuse, so you plug in the a and b into the Pythagorean theorem $a^{2}$ + $b^{2}$= $c^{2}$ --> $2.2^{2}$ + $12^{2}$= $c^{2}$:
$2.2^{2}$ + $12^{2}$= $c^{2}$ - simplify exponents-
4.84 + 144 = $c^{2}$ -add like terms-
148.84= $c^{2}$ -find the square root of 148.84 to solve for c-
12.2=c
C is 12.2