Question

3. In ABC, I(AC) = 7.5 cm,
m /_ABC = 90°
= 90°, I(BC) = 5.5 cm​

Answer 1

Answer:

sorry for that

Step-by-step explanation:

what we have to do

Answer 2

Answer:

by Pythagoras theorem

AC²=AB²+BC²

7.5²=AB²+5.5²

AB²= 56.25-30.25= 36

AB= 6cm