Transcript 10-7 Surface Areas and Volumes of Spheres

11-6 Surface Areas and
Volumes of Spheres
To find the surface area and volume of a sphere.
Students will be able to make an approximation of a sphere
using pyramids.
11-6 Quiz
• The following questions are
designed to help you determine
if you understood today’s lesson
• Record your answers on the top
of your homework sheet and
then begin your lesson I will
answer any questions Monday.
1. Find the surface area of the sphere
with the given dimension. Leave your
answer in terms of π.
diameter of 16 cm
A.
B.
C.
D.
256π cm2
128π cm2
32π cm2
1024π cm2
2. Find the surface area of the sphere
with the given dimension. Leave your
answer in terms of π.
radius of 30 m
A. 1800π m2
B. 900π m2
C. 3600π m2
D. 450π m2
3. A balloon has a circumference of 23cm.
Use the circumference to approximate the
surface area of the balloon to the nearest
square centimeter.
2
A.
B.
C.
D.
1662 cm
529 cm2
168 cm2
674 cm2
4. Find the volume of the sphere shown.
Give each answer rounded to the nearest
cubic unit.
5 mm
A.
B.
C.
D.
262
524
314
105
mm3
mm3
mm3
mm3
5. The volume of a sphere is 3000π m3.
What is the surface area of the sphere
to the nearest square meter?
A. 37699 m2
B. 165 m2
C. 1079 m2
D. 2158 m2
Assignment
11-6 P.737-739
#6-50 even
Be sure to RATE your understanding of the
lesson 4-3-2-1-0 after you finish it AND give me
one complete sentence as to why you rated
yourself that way then summarize what the
lesson was about in a sentence or two.