A square has an area of 144 square inches. What are the side lengths of the square? Use the formula sheet provided. (1 point)
Responses
8 inches
10 inches
10 inches
12 inches
12 inches
14 inches
12 inches
What is the approximate circumference of a circle that has a radius of 90 cm? Use 3.14 for PI and express your answer to the tenths place. Use the formula sheet provided. (1 point)
Responses
180 cm
180 cm
282.6 cm
282.6 cm
565.2 cm
565.2 cm
4,050 cm
565.2 cm
The approximate circumference of a circle is 7,459 miles. What is the radius rounded to the nearest hundredths place? Use 3.14 for PI and express your answer to the tenths place. Use the formula sheet provided.(1 point)
Responses
2,375.5 miles
2,375.5 miles
1,187.7 miles
1,187.7 miles
3,729.5 miles
3,729.5 miles
1,243.2 miles
2,375.5 miles
The radius of a circle is 98 millimeters. What is the area of the circle? Use 3.14 for PI and express your answer to the tenths place. Use the formula sheet provided. (1 point)
Responses
615.4 mm2
615.4 mm2
30,156.6 mm2
30,156.6 mm2
9,604 mm2
9,604 mm2
307.7 mm2
3017.8 mm2
Find the area of a circle with a diameter of 40 cm. Use 3.14 for π
and express your answer to the tenths place. Use the formula sheet provided. (1 point)
Responses
1,256 cm2
1,256 cm2
5,024 cm2
5,024 cm2
125.6 cm2
125.6 cm2
62.8 cm2
62.8 cm2
1256.0 cm2
The area of a circle can be found with the formula: A = πr^2, where r is the radius. Since the diameter is 40 cm, the radius is half of that, which is 20 cm.
Therefore, A = 3.14*(20)^2 = 1256.0 cm2.
The actual length (L) of a rectangle is 27 centimeters. Use the scale drawing of the rectangle to find the actual width (W).
(1 point)
Responses
18 cm
18 cm
32.5 cm
32.5 cm
15 cm
15 cm
9 cm