Question

Can someone please answer. There is one problem. There's a picture. Thank you!

Answer 1

`(60^o)/(360^o)=(1)/(6)\\\\A_O=\pi\cdot4^2=16\pi\\\\Area\ of\ the\ shaded\ sector:\\\\A=(1)/(6)\cdot16\pi=(8)/(3)\pi\approx(8)/(3)\cdot3.14\approx8.4\\\\Answer:\boxed{8.4}`