Floating Hemispherical Bowl Isaac physics

https://isaacphysics.org/questions/hemispherical_bowl?board=9a692b09-4f4d-4ed6-ab6f-99b2ce824afc&stage=a_level

Stuck on this question, I tried drawing a diagram to help what my thought process is, but Im doing smth wrong.
Any help would be greatly appreciated.

OP

Original post by mosaurlodon

https://isaacphysics.org/questions/hemispherical_bowl?board=9a692b09-4f4d-4ed6-ab6f-99b2ce824afc&stage=a_level

Stuck on this question, I tried drawing a diagram to help what my thought process is, but Im doing smth wrong.
Any help would be greatly appreciated.

My working

OP

Nevermind I was using the wrong equation - I've got the answer now
For anyone curious - just use the volume of sphere equation not surface area

Original post by mosaurlodon

Nevermind I was using the wrong equation - I've got the answer now
For anyone curious - just use the volume of sphere equation not surface area

sorry I still not clear

Original post by mosaurlodon

Nevermind I was using the wrong equation - I've got the answer now
For anyone curious - just use the volume of sphere equation not surface area

the depth is unknown so how to get the volume dispated by fluid

OP

If you can post your working I can try to direct you - you also dont need the depth, you need to know the MAX upthrust needed to overcome.

Original post by mosaurlodon

If you can post your working I can try to direct you - you also dont need the depth, you need to know the MAX upthrust needed to overcome.

ohhhhhh thanks I miss the information "bowl sinks below the surface" hhh
thank you for help