Question

PLEASE ANSWER THE QUESTION WHICH IS THERE IN THE ATTATCHED FILE

Answer 1

Answer:

area of the square =20×20

=400sq.m

area of the sector =(90/360)×pi×r^2

=0.25×3.14×100

=78.5

=78.5×4 (4sectors)

=314sq.m

area of the shaded protection》400-314=86sq.m.