I try to make a cover like below.
All lines have a specific height value. When i use commands below, line height ruins everything. Because, all lines have their own heights.
\begin{titlepage}
\singlespacing
\begin{center}
\vspace*{40mm}
KARADENİZ TEKNİK ÜNİVERSİTESİ\\
FEN BİLİMLERİ ENSTİTÜSÜ\\
\vspace*{40mm}
ABC MÜHENDİSLİĞİ ANABİLİM DALI\\
\vspace*{30mm}
TEZ KONUSU\\
\vspace*{70mm}
YÜKSEK LİSANS TEZİ\\
\vspace*{30mm}
AD SOYAD\\
\vspace*{40mm}
Mayıs 2019\\
TRABZON\\
\end{center}
\end{titlepage}
So, i want to give a value to all lines from top. But how? Thank you.

