Question

Pls help I’m struggling with these ones

Answer 1

z=18.8cm

Explanation:

Pythagorean theorem:

`a^(2) +b^(2) =c^(2)`

with "a" being 8cm, and "b" being 17cm.

Substitute:

`8^(2) +17^2=c^2\\64+289=c^2\\353=c^2\\√(353)=c\\ 18.788....=c\\`

rounded to the nearest 1 decimal place= 18.8 cm.

So, z=18.8 cm.

(EDITED!!!! I'm so sorry I rounded to the wrong place!!)

Hope this helps! :)