Answer:
1/5
Step-by-step explanation:
Area of the sector = pi r^2 ( 72/360)
area of the circle = pi * r^2
divide these
Area of the sector = pi r^2 ( 72/360)
----------------------------------------------------
area of the circle = pi * r^2
cancel the pi and the r^2
Area of the sector ( 72/360)
----------------------------=
area of the circle
divide the top and bottom of the fraction by 72
Area of the sector
---------------------------- = 1/5
area of the circle
