Question

answer the given question

Answer 1

Answer:

23.62cm²

Step-by-step explanation:

Shaded area = Area of square - area of circle

Side of the square = 10.5 cm

Area of square = 10.5 x 10.5 = 110.25 cm²

Radius of circle = 10.5/2

Area of circle = πr²

= 22/7 x 10.5/2 x 10.5/2 = 86.62 cm²

Shaded area = 110.25 - 86.62 = 23.62 cm²

Answer 2

Answer:


Explanation:
The side of the square = 10.5cm
Therefore, area of the square = side^2
= 10.5^2
= 110.25 cm^2

Therefore, area of square ABCD = 110.25cm^2 —( i )

Now, there is also a circle inscribed inside the square.
As the circle is touching all the sides at one point each,
Side of square ABCD = diameter of the circle
Therefore, diameter of the circle = 10.5cm
Therefore, radius of the circle (r) = 5.25

Area of the circle = πr^2
= 86.6 cm^2 (approx.) —( ii )

Area of the shaded region =
Area of the square - Area of the circle
= 110.25 - 86.6
= 23.65 cm^2

Therefore, area of the shaded region = 23.65cm^2