Question

please help me with this question

Answer 1

Step-by-step explanation:

a) let name this diagram quadrilateral abcd

side ab =20 so also side cd= 20

side bc=10 so also side ad=10

area of semi square is =1.57×r×r

1.57×5×5=39.25

so area of rectangle is =length×breadth

20×10=200

200 -39.25=165.75