แผ่นงานCircumference & Area of Circles 7.9B
คำถามทั้งหมด: 10
The head of the nail is circular, as shown. The head of this nail has a diameter of 6 millimeters. Which measurement is closest to the area of the head of this nail in square millimeters?
9.42 mm2
113.04 mm2
28.26 mm2
37.68 mm2
A circle has a diameter of 7.6 feet. Which measurement is closest to the circumference of the circle in feet?
23.9 ft
45.3 ft
47.7 ft
11.9 ft
An observatory is shaped like a cylinder standing on one of its bases with a dome on top. The diameter of the floor of the observatory is 64 feet, as shown in the diagram. Which measurement is closest to the circumference of the base of the observatory in feet?
200.96 ft
3,215.36 ft
100.48 ft
401.92 ft
A company's logo was designed using circles of 3 different sizes. The diameters of two of the circles are shown. Which measurement is closest to the area of the largest circle in square centimeters?
56.52 cm2
141.30 cm2
1,017.36 cm2
254.34 cm2
A circular tablecloth has a radius of 2.5 feet. Kyle is sewing a piece of ribbon around the edge of the tablecloth. If Kyle has exactly enough ribbon, which measurement is closest to the length of the piece of ribbon in feet?
7.85 ft
15.7 ft
19.63 ft
31.4 ft
A rotating lawn sprinkler sprays water in a circular area of grass, as shown in the picture, The diameter of the circular area of grass is 16 feet. Which measurement is closest to the area in square feet that this sprinkler sprays with water?
100.48 ft2
50.24 ft2
200.96 ft2
803.84 ft2
A group of students stood in a circle to play a game. The circle had a diameter of 22 meters. Which measurement is closest to the circumference of the circle in meters?
34.54 m
1,519.76 m
379.94 m
69.08 m
A circular railroad-crossing sign has a diameter of 30 inches. Which measurement is closest to the area of the sign in square inches?
94.2 in2
188.4 in2
706.5 in2
286.6 in2
Jennifer painted a tabletop that is shaped like a circle. The circumference of the tabletop is 6π feet. Which measurement is closest to the area of the tabletop in square feet?
18.84 square feet
28.26 square feet
37.68 square feet
113.04 square feet
The diagram below shows the radius of the circular opening of a drinking cup. Which of the following is closest to the circumference of the opening in centimeters?
12 cm
50 cm
25 cm
8 cm
แป้นคำตอบCircumference & Area of Circles 7.9B
คำถามทั้งหมด: 10
28.26 mm2
23.9 ft
200.96 ft
254.34 cm2
15.7 ft
200.96 ft2
69.08 m
706.5 in2
28.26 square feet
25 cm