Question

143°=...... 81°=...... 99°=...... va rooog

Answer 1

$1^o=60' \\ 1 '=60'' \\ \Rightarrow1^o=60'=3 \ 600'' \\ \bold{a)} \ 143^o=8 \ 580'=514 \ 800'' \\ \bold{b)} \ 81^o=4 \ 860'=291 \ 600'' \\ \bold{c)} \ 99^o=5 \ 940'=356 \ 400''$