Use the formula for area of a circle,

and they give an approximation so use that for pi
Answer:
A) 10
Step-by-step explanation:
Apex :)
Answer:
See below
Step-by-step explanation:
You could say "10 times the sum of 0j, 40, and 4j" because that is exactly what you are doing in the algebraic expression.
The obtuse angel is ∠AOC. This is obtuse because it is larger then 90 degrees
Hope this helped!
~Just a girl in love with Shawn Mendes