Question

quesiton attached plz help

Answer 1

question 19 only

Answer 2

convert 60 degrees to radians.... what do you get?

Answer 3

once you have that, since the circumference of that unit circle is 2pi, your answer will be whatever 2pi - (60 degrees in radians) is....

Answer 4

it becomes pi/3 so it becomes 5/3 pi

but that is what i got at first and it is wrong

the right answer is 5/3 pi +2

Answer 5

@dpaInc

here is the explanintion of my book that i do not get

Answer 6

oh... i see the perimeter of the "shaded region" includes the straight sides that make up the the perimeter... since the radius of the circle is 1 you need to add 2 to 5pi/3...

Answer 7

the 5pi/3 is just the perimeter of the "circular" part... you also need to add the straight sides...

Answer 8

oh ok thanku

Answer 9

yw...:)