PRACTICE: UNIT 13

Miss Martorello calculated that her hoop earring has a diameter of 3.5 centimeters. What is the area of her earring (round to the hundredth's place)?

• 11 cm²
• 9.62 cm²
• 21.99 cm²
• 9.25 cm²

What is the area of the circle? (Round to the nearest tenth)

• 75.4 m²
• 452.4 m
• 75.4 m
• 452.4 m²

What is the area of the circle? (Round to the nearest tenth)

• 19.6 ft²
• 78.5 ft²
• 15.7 ft²
• 31.4 ft²

The radius is....

• a line that crosses through the center and touches each edge 
• the center point of a circle 
• a line from the center point to the edge of the circle
• an element in science

What is the area of the circle?

• 50.24 in²
• 200.96 in²
• 25.12 in²
• 62.52 in²

If the radius of a circle is 12.5 meters, the diameter is ____

• 6.25 meters
• 125 meters
• 25 meters
• 50 meters

Tags

CCSS.7.G.B.4

What is the area of this circle? (Round to the nearest hundredth)

• 1256.64 in²
• 31.41 in²
• 314.16 in²
• 123.12 in²

Which set of given side lengths will NOT create a triangle?

• 1, 4, 3
• 5, 12, 11
• 5, 4, 3
• 2, 2, 2

Other than the formula C=πd what is another formula for circumference of a circle?

• C=2π
• C=2πr
• C=πr²
• C=πd²

Tags

CCSS.7.G.B.4

A bicycle tire has a diameter of 20 inches. How many inches is one full revolution of the wheel?  

• 31.4 in
• 1256 in
• 125.6 in
• 62.8 in