How to display the Index of a matrix to other corresponding matrices by considering relations

Please can you help me solve this matrix?

A=[12 8 6;10 11 3;25 9 20]
B=[8 9 16;18 8 5;10 13 7]
C=[4 3 30;13 80 21;6 11 17]

I want to find the numbers (with their index) that are greater than or equal to 10 in matrix A (A>=10) and at the same time, the matrices of B and C should display their corresponding values at which A>=10

Thank you

Answer 1

[KALYAN ACHARJYA]

No need to get the indices, you can directly map as per A>=10 condition in B and C

A(A>=10)
B(A>=10)
C(A>=10)

[Walter Roberson]

More efficiently:

mask = A>=10;
A(mask)
B(mask)
C(mask)

[KALYAN ACHARJYA]

Yes sir @Walter Roberson Thanks

@Abdullahi Abubakar if you are strict to get the indices way, following one-

[i,j]=find(A>=10)
A_val=A(sub2ind(size(A),i,j))
B_val=B(sub2ind(size(B),i,j))
C_val=C(sub2ind(size(C),i,j))

[Abdullahi Abubakar]

Thank you Sir @Walter Roberson

[Abdullahi Abubakar]

Thanks @KALYAN ACHARJYA I appreciate it