Hat is the area of a sector with a central angle of 4π5 radians and a radius of 11 cm? use 3.14 for π and round your final answer to the nearest hundredth

Step-by-step explanation:

we know that

The area of a circle is equal to

we have

substitute

radians subtends the complete circle of area

so

by proportion

Find the area of  a sector with a central angle of radians

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

its 69.420

step-by-step explanation: