Question

you can get the max points i can give for this :)

Answer 1

Answer:

${a}^{2} + {b}^{2} = {c}^{2} \\ {a}^{2} + {9}^{2} = {17}^{2} \\ {a}^{2} = 289 - 81 \\ {a}^{2} = 208 \\ a = 14.42cm$