How to use a sentence with the word common defense?

In her defense, she thought I was trying to kill her.

Her defense was weak and inapt but she attained her object.

The only defense in that statement was honesty.

It was the worst defense he could have used.

In his defense, Josh wasn't making it easy.

My only defense is that I didn't realize I was hurting you.

Explanation:

I know, it's more than 1 but you can choose whichever.

a

"the land of the dead"

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34