Question

giving medal for Answer, help??


Find the area of a circle whose radius is 5.29 centimeters. Round to the nearest tenth.
a.
75 cm^2
c.
84 cm^2
b.
87.9 cm^2
d.
16.6 cm^2

Answer 1

A = pi. r^2

Answer 2

how do you work it out tho, i dont understand

Answer 3

A = pi (3.14) x 5.29^2

Answer 4

pi.. is 3.14? the radius is 5.28

Answer 5

ok

Answer 6

radius = 5.29

Answer 7

what did you get ?

Answer 8

i tryed and my answer was way off

Answer 9

ok first multiply 5.29 x 5.29

Answer 10

then multiply 3.14 to that answer

Answer 11

oH!!! so its 87.9

Answer 12

correct