Question

please say answer very fast...​

Answer 1

Step-by-step explanation:

area of designed region=area of two sectors-area of square

=theta/360×pier^2-side×side

=90/360×22/7×2×10×10-100

=4×22×10×10×2/7-100

=15600/7-100

=2228.57-100

=2128.57cm^2