Here !
1 - You need to find the formula for the area of a sector which is : A = n/360(πr²)
Remember that A is the factor that we are trying to find.
N represents the measurement of the angle
R is the radius
2 - Make sure you are able to identify them in the problem
3 - just plug them in :)
And I think that's it :)
Let me know if you have questions about the answer :)
Good luck !