Find area of shaded region. round to the nearest tenth need asap

The area of shaded region is 226.4 meter squared.

Step-by-step explanation:

Radius of the circle = r =18.6 m

Angle subtended by chord

Area of  sector =

In ΔOAB

∠A+∠B+∠O= 180°

2∠A+123°= 180°(∠A=∠B, isosceles triangle)

∠A=∠B=28.5°

AC=BC (Radius of the circle  bisects the chord at right angle.)...(1)

In ΔOAC

OC = 8.87 m

AC = 16.34 m

AB = AC+AB=16.34 m+16.34 m=32.68 m (from (1))

Area of the ΔOAB =

=

Area of segment = Area of sector - Area of triangle:

The area of shaded region is 226.4 meter squared.

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

-8

step-by-step explanation: