# Math

One medium circle and one small circle touch each other, and each circle touches the larger circle.

The figure shows two circles of different radius inscribed in a larger circle. The two circles are drawn such that both touch the circle as well as each other without overlapping. The radius of the larger circle inscribed in the circle is labeled as 9 centimeters and the radius of the smaller circle inscribed in the circle is labeled as 4 centimeters. The region inside the circle not covered by the two circles is shaded.

Which is the area of the shaded region?
A.72 π square centimeters

B.97 π square centimeters

C.26 π square centimeters

D.169 π square centimeters

1. 👍 0
2. 👎 7
3. 👁 996
1. more description needed
Two small circles can be placed inside the larger circle in many ways. All we can be sure of from your description is that the diameter of the other small circle cannot be greater than 10 cm.

In any case, the area a = πr^2 for each circle.
So, the area of the other circle is at most 25π
81π - 16π - 25π = 40π
That is the minimum shaded area.

1. 👍 4
2. 👎 0
👨‍🏫
oobleck
2. tysm also the one i posted before this im confused on what the answer is

1. 👍 2
2. 👎 1
3. ESTIMATE BY ROUNDING OF TO NEAREST HUNDREDS THE NUMBER IS 673 - 258
BSRKV SCHOOL TIME TEXT BOOK

1. 👍 0
2. 👎 1

1. 👍 1
2. 👎 1

## Similar Questions

1. ### Physics

A stone is tied to a string (length = 0.700 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is

2. ### Geometry midpoint formula

A circle on the Coordinate plane has a diameter with endpoints at (6,8) and (15,8). What are the coordinates of the center of the circle? What is the radius of the circle? Identify the coordinates of another point on the circle.

3. ### math

In the x y − xy− plane, the center of a circle has coordinates ( 6 , 10 ) (6,10) and the circle touches the y − y− axis at one point only. What is the radius of the circle

4. ### math

ABCDE is a circle with centre O. The diameter, AC, is extended to the point F so that CF = 16 cm. The line BF is the tangent to the circle at B and FDE is a straight line such that FD = 18 cm and chord DE = 14 cm (D and E are

1. ### Language Arts

Circle the correct form of the pronoun 1. Jane and Sarah said (she, they) were too tired to skate any longer. Circle they 2. Either Bill or John will bring a sample of (his, their) own work. Circle their 3. Jane and Jill called

2. ### math

what is the expression for the area of the shaded region in the diagram in factored form? diagram: (shaded) Large circle have diameter of 8x (clear) small circle have diameter of 8y ___ my work: Area of large circle - Area of

3. ### math

A regular hexagon is drawn inside of a circle so that each of its vertices touches the circle. The diameter of the circle is 4 centimeters and the perimeter of the hexagon is 12 centimeters. How much longer is the circumference of

4. ### math

find the area of each circle. round to the nearest tenth.use 3.14or 22/7. 1.circle with 6cm 2.circle with 25in 3.circle with 11ft 4.diameter =10.5 5.radius=6.3mm 6.radius=31/4 yd

1. ### Math

The figure below shows a shaded circular region inside a larger circle: A shaded circle is shown inside another larger circle. The radius of the smaller circle is labeled as r and the radius of the larger circle is labeled as R.

2. ### math

two circles intersect at point T.if the small circle has a raduis of 4 and C is the center of the larger circle,then the diameter of the larger circle must be 1]4 2] 8 3] 12 4]16 5] not enough information is given

3. ### apex geometry

Hannah constructed two similar circles as seen in the image below. If the arc length of the larger circle is , which of the following would be true? A. The arc length of the smaller circle is proportional to the radius of the

4. ### maths

O is the centre of the circle and A and B are points on the circumference of the circle. The radians of the circle is 12 cm and the angle AOB is 54 degrees. Choose the one option which gives the length of the circle joining A and