Year 1 Homework #19

Name ________________________

1). (1 point each) Find the following percentages of 80:

a). 50% _____

b). 40% _____

c). 30% _____

d). 20% _____

e). 150% _____ f). 90% _____ g). 110% _____ h). 5% _____

2). (1 point each) Find the circumference (perimeter) of these circles.
Remember, C = D and D = 2R
(Use )

a). DIAMETER (D) = 10 inches

C = ________

b). DIAMETER (D) = 2 feet

C = ________

c). DIAMETER (D) = 8 cm.

C = ________

d). DIAMETER (D) = 1.1 mile

C = ________

e). DIAMETER (D) = 4.6 feet

C = ________

f). DIAMETER (D) = 5 inches

C = ________

g). RADIUS (R) = 4 inches

C = ________

h). RADIUS (R) = 8 cm.

C = ________

i). RADIUS (R) = 6 feet

C = ________

j). RADIUS (R) = 3 inches

C = ________

k). RADIUS (R) = 2.2 cm.

C = ________

m). DIAMETER (D) = 1.8 feet

C = ________

n). RADIUS (R) = 5000 feet

C = ________