Answer:
-3
Step-by-step explanation:
Hope this helps:)
Notice the picture
we have, the opposite side
the angle
and we want the hypotenuse
so recall your SOH CAH TOA

which one has all that? low and behold, is Ms Sine,
so let's bother Ms Sine

make sure your calculator is in Degree mode, since the angle here is in degrees, as opposed to Radian mode
Answer:
The diameter is 2 times the radius.
D=2r
Substitute 20 as the diameter and solve for r.
20=2r
Divide both sides by 2.
10=r
So, the radius is 10 centimeters.
:)
Can i please get an image and i will be glad to help :)
Well 6×12=72. I don't know what the original tank size was but subtract the original from this one to get your answer.