Angles 1 and 3 are vertical lines and because they are vertical, both angles equal each other.
Answer:
144
Step-by-step explanation:
20×12=240
add 4 to 20 and 12
makes a new rectangle 24×16
24×16=384
384-240=144
8.6
You need to use the Patagorean theorem! :) Just do seven squared and five squared add them up and then square root them!!
