Area of sector=fraction of sector times area of circle
fraction of sector=degrees/360
and area of circle=pir^2
so
hold a sec, we have the wiper on the outside, so we want to find the outside ring thing
do
area big sector-area small sector
or even better
(degrees/360) times (area big-areasmall)
big is 10
small is 4 (10-6=4)
areabig=10^2 times pi or 100pi
areasmall=4^2 times pi or 16pi
areabig-areasmall=100pi-16pi=84pi
then find the fraction
84pi times (150/360)=35pi square inches
A = 57
45 + 12 = 57
57 - (-12) = 45
4p - 2 when p=8
(4 x 8) - 2
32 - 2
30
answer: 30
hope it helped :)
Answer:
Health inspector:7,14,21,28
Fire inspector:12,24,36,48
They will both be there on day 84
Answer:
16.8 ÷ 8 = 2.1
( For the other ones with the " tenths " confuses because I dont know where its going gl l though )
