Respuesta :

Answer:

144

Step-by-step explanation:

21/42 = x/96

cross multiply and you get:

42x = 2016

divide 42

x = 48

thats the length of the side of the small triangle, add 96

48 + 96 = 144

dilsai

Step-by-step explanation:

please mark me as brainlest and follow me

Ver imagen dilsai
RELAXING NOICE
Relax