What is the formula for the area of a circle?
Finding the Area of a Circle

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Mathematics, Science
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10th - 12th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 times pi times radius
pi times diameter squared
pi times radius squared
pi times radius times diameter
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a circle has a diameter of 14 cm, what is its radius?
14 cm
3.5 cm
7 cm
28 cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a circle with a radius of 8 feet using pi as 3.14?
201.06 square feet
200.96 square feet
202.96 square feet
199.96 square feet
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For a circle with a diameter of 42 yards, what is the area using pi as 3.14?
1,284.74 square yards
1,384.74 square yards
1,484.74 square yards
1,184.74 square yards
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the area of a semicircle?
pi times diameter squared
1/2 times pi times radius squared
1/2 times pi times diameter squared
pi times radius squared
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radius of a semicircle with a diameter of 9 feet?
9 feet
2.25 feet
4.5 feet
18 feet
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a semicircle with a radius of 13 inches using pi as 3.14?
265.23 square inches
265.53 square inches
265.43 square inches
265.33 square inches
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