Question

Help pls pls help i need help

Answer 1

∠YXW = 90°

on sait que ∠YXZ =(7x-10)°, que ∠ZXW = (2x+1)°

en degré :

7x-10+2x+1=90

9x-9=90

9x=90+9

9x=99

x=99/9=11°

x= 11°

∠ZXW = (2x+1)° = 2*11+1 = 23°