Answer:

Step-by-step explanation:
Once we know the diameter of the circle, we can figure out the problem.
The diameter of the circle = The diagonal of the rectangle inscribed in the circle
To find the diagonal of the rectangle, we can use a formula.

The width is 10 cm and the length is 12 cm.


The diagonal of the rectangle inscribed in the circle is 15.62 cm.
The diameter of the circle is 15.62 cm.
Find the area of the whole circle.

The
is the radius of the circle, to find radius from diameter we can divide the value by 2.



Let’s find the area now.


Find the area of rectangle.

Length × Width.


Subtract the area of the whole circle with the area of rectangle to find area of shaded part.


Answer:
too much reading, can you put more points.
(edit: OML SO SORRY -THOUGHT THIS WAS QUESTIONS)
Step-by-step explanation:
Answer:
A 2/6 and 3/6 is the Answer
Answer:
138 cm.
Step-by-step explanation:
So first, we find the S.A. of the front and back.
The diagram says the side length of the front is 3 cm. and 3 cm.
3x3=9. So then, the back is also 9 cm, 9+9=18.
Now to find the S.A.'s of the four sides, you have to see the side lengths of each of them. The side lengths are 3 and 10.
3x10=30. This means each of them is 30 cm.
30x4=120. 120 is the total surface area of the four sides.
To find the total surface area of the whole rectangle, you add all the surface areas.
120+18=138 cm. (Not squared, since it's surface area and not area.)