Question

What is the diameter of a circle whose circumference is 89.49 centimeters? Use 3.14 for π.

14.25 cm

5.34 cm

29.83 cm

28.5 cm

Answer 1

Circle
Solve for diameter
d≈28.17
C Circumference

d
r
r
r
d
d
C
A
Using the formulas
C=2πr
d=2r
Solving ford
d=C
π=88.49
π≈28.16724

Answer 2

@campbell_st

Answer 3

d≈28.49
C Circumference

d
r
r
r
d
d
C
A
Using the formulas
C=2πr
d=2r
Solving ford
d=C
π=89.49
π≈28.48555

Answer 4

my bad i was off an integer

Answer 5

all of this stuff is confusing -.-

Answer 6

well you should know the circumference formula is

C = pi x d

so

89.49 = 3.14 x d

solve for d

Answer 7

its 28.5 using the formula

Answer 8

good job @campbell_st

Answer 9

i did it the long way

Answer 10

easy peasy