Question

solve this question plzz

Answer 1

here is your question's answer
AD= 7

Answer 2

BD = √CD2 + CB2 = √20^2 +15^2 = √400 + 125 = √625 = 25
then AD = √BD2 - AB2 = √25^2 - 24^2 = √49 = 7
so your answer is option b -> 7.