Respuesta :
Answer:
I only got 2) 5.5units
Step-by-step explanation:
ΔACD is a 45°-45°-90° triangle so if we apply the rule for that triangle:
AD = 11√2
AC = DC = 11√2 ÷ √2 = 11
ΔABC is a 30°-60°-90° triangle so if we apply the rule of that triangle:
AC = 11
x = CB = AC/2 = 11/2 = 5.5
so x=5.5un.
Hope this is correct and hope it helps :)
Answer:
2) 5.5units because vvvvvvv
ΔACD is a 45°-45°-90° triangle
AD = 11 {square root of 2}
AC = DC = 11√2 ÷ √2 = 11
ΔABC is a 30°-60°-90° triangle so if we apply the rule of that triangle:
AC = 11
x = CB = AC/2 = 11/2 = 5.5
so x=5.5