Question

when a = 150 degress, r = 10 cm, and R = 15 cm
Find the area of the figure shown

Answer 1

area of larger sector - area of inner sector
you know the formula for area of sector ?

Answer 2

no

Answer 3

\(\large A =(n/360) \pi r^2\)

Answer 4

n = angle in degrees, here n = 150

Answer 5

for larger sector ,
r= R = 15
for smaller sector
r= r = 10

Answer 6

ok I'll do the math ad get back with the answer to check

Answer 7

sure :)

Answer 8

so area of larger sector - area of inner sector =163.54
is this correct?

Answer 9

yes! i am getting that too :)

Answer 10

thanks for providing the formula :)

Answer 11

welcome ^_^

Answer 12

thanks a lot @hartnn