Answer:
WXV=87° because they are opposite angle
Step-by-step explanation:
frist we need to find TU
TU=1/2×87°
TU=43.5
WSTU is half circle =180°
WS+ST+TU=180°
72°+43.5+ST=180°
115.5+ST=180°
ST=180°-115.5
ST=64.5°
the measurement of UV=wu-x
UV=180°-87°
UV=93° the inner angle that made by UV
the arc of UV1/2=93° cross production
UV=46.5
vst i didn't understand
i help you???
