Week 11 ACC Math Homework
Due October 21, 2016 Name: _____________________________ Class: _________
Vocabulary: Fill in the blank with the correct vocabulary word: area diameter radius Pi circumference
_________________________
is the ratio of circumference to diameter of any circle which is always
a little more than 3
_________________________
the distance around a circle
_________________________
the number of square units needed to cover a given surface
_________________________
a line segment with one endpoint at the center of the circle and the other
endpoint on the circle
_________________________
a line segment that passes through the center of the circle and whose
endpoints lie on the circle
Label the parts of the circle: radius diameter circumference
Use the following formulas for the questions below:
Area of a circle:
π𝑟 2
Circumference of a circle:
2πr or πd
A circular mat has a circumference of 220
centimeters. Find the radius rounded to the
nearest whole number.
A clock tower has a circular clock face with
an area of 144π square feet. What is the
diameter of the clock face?
The radius of the circular lens of a magnifying
glass is 4 centimeters. What is the area, in
square centimeters of the glass?
The cost of painting a circular traffic sign is
$3.50 per square foot. How much, to the
nearest dollar, will it cost to paint the sign
if its diameter measures 36 inches?
Week 11 ACC Math Homework
Due October 21, 2016 Name: _____________________________ Class: _________
A fast-food restaurant offers delivery service
anywhere within a 6-mile radius. What area
does the restaurant delivery service cover?
Round your answer to the nearest square mile.
The circumference of the circular table on
Beverly’s porch is 72π inches. What is the
radius of the table?
Find the area of the figure.
Find the area of the figure. Use 3.14 for .
Find the area of the figure.
Find the surface area of the figure.
Find the surface area of the figure.
Rebecca gives gifts to 12 employees. Each gift is in
a box that is 12 inches by 10 inches by 3
inches. How much wrapping paper does
Rebecca need to completely cover the boxes?
A 360 in2
A.
B.
C.
D.
32.5 cm²
210 cm²
225 cm²
240 cm²
B1,720 in2
C 4,464 in2
Find the volume of the cone.
Week 11 ACC Math Homework
Due October 21, 2016 Name: _____________________________ Class: _________
Calculate the volume of a sphere with a diameter of 4 cm.
The cylinder container has a diamter of 10
cm and a height of 8 cm. Find the volume of
the cylinder to the nearest cm. Use 3.14 for
.
a)
b)
c)
d)
Calculate the volume of the cone when the radius is 6 cm
and the slanted height is 10 cm.
2512 𝑐𝑚3
251.2 𝑐𝑚3
125.6 𝑐𝑚3
628 𝑐𝑚3
Week 11 ACC Math Homework
Due October 21, 2016 Name: _____________________________ Class: _________