Question

Which is the formula to calculate area for a circle with diameter eighty-two miles?

pi times forty-one squared
pi times eighty-two squared
two pi times forty-one
two pi times eighty-two
I think i'ts D, but I'm not sure.

Answer 1

ok give me one moment I can figure this out

Answer 2

\(\bf\huge~~~~\color{#ff0000}{W}\color{#ff2000}{e}\color{#ff4000}{l}\color{#ff5f00}{c}\color{#ff7f00}{o}\color{#ffaa00}{m}\color{#ffd400}{e}~\color{#bfff00}{t}\color{#80ff00}{o}~\color{#00ff00}{O}\color{#00ff40}{p}\color{#00ff80}{e}\color{#00ffbf}{n}\color{#00ffff}{S}\color{#00aaff}{t}\color{#0055ff}{u}\color{#0000ff}{d}\color{#2300ff}{y}\color{#4600ff}{!}\color{#6800ff}{!}\color{#8b00ff}{!}\\\bf ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Made~by~TheSmartOne\)

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Answer 3

Area of a circle = \(\sf \pi r^2\)

Answer 4

awe man :(

Answer 5

\(\sf diameter = 2 \times radius \)

Answer 6

he is right

Answer 7

Thank you. So it's D?

Answer 8

You are given the diameter, solve using the second formula and get the radius. And plug in the radius into the area formula and solve :)