A Quick Review of Spheres

Multiple Choice

What is the surface area of a sphere with diameter of 14 in? (round to hundredths place)

• $$615.75\ in^2$$  

• $$2463\ in^2$$  

• $$706.85\ in^2$$  

• $$616\ in^2$$  

Multiple Choice

Earth's equator is about 24,902 miles long. What is the approximate surface area of the Earth? (Round to the nearest thousand square miles)

• $$197,409,000\ mi^2$$  

• $$789,637,000\ mi^2$$  

• $$242,000,000\ mi^2$$  

• $$788,798,000\ mi^2$$  

Multiple Choice

A sphere has a diameter of 60 inches. What is its volume to the nearest cubic inch?

• $$113,097\ in^3$$  

• $$904,779\ in^3$$  

• $$113,000\ in^3$$  

• $$905,000\ in^3$$  

Multiple Choice

What is the volume to the nearest cubic centimeter?

• $$905\ in^3$$  

• $$7238\ in^3$$  

• $$905\ cm^3$$  

• $$7240\ cm^3$$  

Multiple Choice

The volume of a sphere is $$5000\ m^3$$  . What is its surface area to the nearest square meter?

• $$1400\ m^2$$  

• $$1412\ m^2$$  

• $$110\ m^2$$  

• $$1130\ m^2$$  

Multiple Choice

Suppose the radius of a sphere is halved. How does this affect the volume of the sphere?

• The volume decreases by 95%

• The volume decreases by 68.75%

• The volume decreases by 50%

• The volume decreases by 87.5%

Multiple Choice

Suppose the radius of a sphere is increased by a factor of 4. How does this affect the volume of the sphere?

• The volume is increased by 6.30%

• The volume is increased by 63.0%

• The volume is increased by 630.0%

• The volume is increased by 6300%

Rest of Class:

• Complete and turn in Benchmark 1

• DeltaMath: Volume of a Sphere L1 and L2​

• Give units (in, ft, m, etc) in Sphere Dimensions

• Think about your design's location: East Quad, West Quad, or Dining Commons

​Benchmark 1 Reminders