## anonymous one year ago The area of sector of AOB is 30.25 pi cm^2

1. anonymous

Area of shaded region = Area of Sector OAB - Area of Triangle OAB Area of sector = $(\theta \div360)\pi r ^{2}$ Area of triangle = $(1\div2) \times b \times h$

$\theta = 90 , r = b = h = 11$

Plug in these value and you get the area of the shaded region

5. anonymous

thank you! thank you soooooo much!