Question

prove the angle in a semicircle is a right angle

Answer 1

the attachment is the answer

Answer 2

here is your answer:->
$draw \: a \: circle \: of \: any \: radus. \\ at \: the \: point \: o \: draw \: a \: diameter \: then \: place \: the \: protector \: on \: \: the \: point \: o \: and\: then \: draw \: an \: angle \: of \: 90 \: \\ then \: u \: will \: se \: the \: angle \: in \: a \: semi \: circle \: is \: a \: right \: angle.$