Circumference and Area of Circles and Other Composite Figures

The perimeter of a circle is usually called the...

• radius

• diameter

• circumference

• area

Tags

CCSS.7.G.B.4

What is the circumference of a circle with a diameter of 1 inch? Use 3.14 for pi.

• 3.14 inches

• 6.28 inches

• 314 inches

• 628 inches

Tags

CCSS.7.G.B.4

The area of the circle would be found using which of the following formulas...  (9 cm is the radius)

• Area = π(4.5)²

• Area = π(9)²

• Area = π(18)²

• None of these

Tags

CCSS.7.G.B.4

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

Tags

CCSS.7.G.B.4

Solve.

• 78.5 cm²

• 100 cm²

• 21.5 cm²

• 121.5 cm²

• 88 in

• 44 in

• 116 square in

• None of the above

Tags

CCSS.7.G.B.4

Find the area of the shaded region. Round your answer to nearest whole number.

• 46 sq. in.

• 44 sq. in.

• 42 sq. in.

• 40 sq. in.

Find the area of the shaded region.

• 50 pi 

• 25 pi 

• 75 pi 

• 100 pi 

In the given figure consisting of four circles , with all the points A,B,C,D,E lie on the segment AE , and AB=BC=CD=1 , find the area of shaded region if D is the centre of largest circle .

• 5π

• 2π

• 2.25π

• 4π

The radius of the larger circle is 5 meters and the radius of the smaller circle is 2.5 meters. What is the approximate area of the shaded region?

Round to the nearest whole number. No label.

• 5 squared meters

• 20 squared meters

• 59 squared meters

• 79 squared meters