Answer:
36
Step-by-step explanation:
141) d
121) c
23) c
51) a
49) c
N I believe but I’m not too sure
We have a linear function
and we know that
It is a semicircle so you'd use this formula for the area:
πr² / 2
Then substitute 2 into r and solve (2 because it's the radius, 4 is the diameter)
You would use this formula for the perimeter:
(πd / 2) + d
or
πr + 2r
Then substitute 4 into d / 2 into r and solve.
Hope I helped :)