Question part points submissions used this exercise involves the formula for the area of a circular sector. find the area of a sector with central angle 3π/5 rad in a circle of radius 9 m. (round your answer to one decimal places.)

The formula for the area of a sector in radians is  ,  where theta is the angle in radians.  For us, the formula looks like this:   .  Doing all the multiplication on that gives us  .  Multiplying in pi and rounding to the nearest tenth gives us an area of 76.3 meters squared.  You can use the formula for the area of a sector with the angle in degrees as well.  Just replace the 360 degrees with 2pi and it works the exact same way.

Where’s the graph too show me?

This polygon has 4 sides
180(4-2) = 180(2) = 360 degree
80+90+2x + 3x = 360
170+5x = 360
5x = 190
x= 38
measure of angle t is 2(38)= 76
the answer is c. trust me
hope this !