Question

CAN SOMEONE PLEASE HELP ME???

Answer 1

Answer:

C; 13

Step-by-step explanation:

pythagorean theorem. 12^2+5^2=c^2

144+25 = c^2

169 = c^2

13 = c

Answer 2

Answer:

$13$

Step-by-step explanation:

here we using Pythagoras theorem

$AC {}^{2} = AB {}^{2} + BC {}^{2} \\ AB {}^{2} = AC {}^{2} - BC {}^{2}$

$12 {}^{2} - 5 {}^{2} = 144 - 25 = 169 \\ \sqrt{169} = 13$