Question

calculate the length of the boundary and the area of the shaded region in the following diagram:

Four semicircles on a square

its urgent please answer fast​

Answer 1

Answer:

88 is the answer

Step-by-step explanation:

diameter =28

therefore radius =14

circumference =

$2\pi \: r$

= 2×22/7×14

=88

Answer 2

Answer:

Step-by-step explanation:81cm^2