Question

Help a girl in need! please?

Answer 1

NI = 3 cm

Explanation:

The side splitting theorem allows you to set up this proportion.

`(AT)/(AR) = (TN)/(NI)`

`(8)/(2) = (12)/(NI)`

Cross multiply.

8NI = 2 *12

8NI = 24

NI = 3