Answer: A 28.50 sq. u
Step-by-step explanation:
In the given figure , radius of the circle : r= 10 u
Central angle made by Arc ED:
= 90° ( right angle )
Now , the area of the segment is given by :-
Area of segment = Area of sector (ECD) - Area of triangle(ECD) (i)
Formula : Area of right triangle = 0.5 x Base x Height
Area of sector = 
Using above formulas in (i) and substituting corresponding values , we get
Area of segment =

Hence, the correct answer is A 28.50 sq. u
Answer:
20 is the father's 20 is the son
Step-by-step explanation:
20+20=40
40/2=20
40-20=20
another way:
20:n= 40
40-20=20
20:20=40
Area of the rectangle: 14.5 x 22 = 319 square meters.
Area the goat can reach ( area of a circle): 3.14 x 2.5^2 = 19.625 square meters.
Now subtract the area of the circle from the area of the rectangle:
319 - 19.625 = 299.375 square meters. (Round the answer as needed.)