# math

posted by
**joshuah** on
.

find area of cirle 3.9cm radius to nearest tenth?

a=pie 3.14 x r squared

3.14 x 3.9(15.21)

3.14 x15.21 =47.75

nearest tenth =47.8cm squared

is this the correct answer?

posted by
**joshuah** on
.

find area of cirle 3.9cm radius to nearest tenth?

a=pie 3.14 x r squared

3.14 x 3.9(15.21)

3.14 x15.21 =47.75

nearest tenth =47.8cm squared

is this the correct answer?