Question

A cylindrical well is 20 meters deep and has a diameter of 1.5 meters. Approximately how many cubic meters of soil were dug out to make the well? (Use π = 3.14.)

11.78 cubic meters
35.33 cubic meters
121.20 cubic meters
141.30 cubic meters

Answer 1

@TheSmartOne @pyxieyt

Answer 2

\(\sf\Large V = \pi r^2 h\)

Answer 3

What is 1.5/2 = ?

Diameter/2 = radius

and we need to find the radius :)

Answer 4

0.75

Answer 5

and h= 20

and \(\pi\) = 3.14

\(\sf\Large V = (3.14) \times (0.75)^2 \times 20 =?\)

Answer 6

it is 1.76625

Answer 7

i think

Answer 8

@TheSmartOne

Answer 9

nope, that isn't even an answer choice :/

Answer 10

ok what is 0.75 x0.75 = ?

you need to use a calculator

Answer 11

okay 0.5625

Answer 12

okay i got the answer now i read it wrong ts 35.33

Answer 13

thank you

Answer 14

that's correct :)

Answer 15

anytime! :D