strlen in 2d array

[punjabian]

using strlen function how can we find out the length of one string of a 2d array.

 char arr[][20]={"america", "england", "germany", "france", "europe"};

how can I find the length of lets say america here using strlen????

[D80DSL3A]

length = strlen( arr[0] );

[codekiddy]

strlen(*arr); /*for america*/
strlen(*(arr+2)); /*for germany*/

to find out all of them:

for (int i = 0; i < 5; ++i)
      cout << strlen(*(arr+i));