As an extension, have students research
the population of the U.S. states. They can make circle graphs showing
the percent of the U.S. population in several of the states with the
greatest populations or in different regions of the U.S.
Proceedure for the Activity
Answers:
Procedure for the Activity
Step 1
China: 21%; India:
17%; United States: 5%; Indonesia: 4%; Brazil: 3%; Nigeria: 2%; Japan:
2%; Other: 47%
Step 2
China: 76°; India:
61°; United States: 18°; Indonesia: 14°; Brazil: 11°;
Nigeria: 7°; Japan: 7°; Other: 169°
Step 3
Step 4
The arcs for the
wedges for Nigeria and Japan are congruent because they both represent
2% or 7° of the circle.
Step 5
China: 15%; India:
19%; United States: 4%; Indonesia: 4%; Brazil: 3%; Nigeria: 4%; Japan:
1%; Other: 51%
Step 6
China: 54°; India:
68°; United States: 14°; Indonesia: 14°; Brazil: 11°;
Nigeria: 14°; Japan: 4°; Other: 184°
Step 7
Step 8
The arcs for the
wedges for the United States, Indonesia, and Nigeria are congruent
because all three represent 4% or 14° of the circle.
Step 9
Nigeria will have
an increase in population of 160%. To determine which country will
have the greatest percent of increase in population, subtract the
2002 population from the projected 2050 population and then divide
by the 2002 population.
