Answer:
D= 72,U=36
Explanation:
answer for no 6
it's an isosceles triangle so UM = UD and Angle M= angle D so, d= 72 °
now
U+M+D=180
U+72+72=180
U= 36
hope this helps
I forgot to answer the value of MD so I'm editing this answer
MD+UM+DU=36.6 ( Given perimeter of the circle)
MD=36.6-14-14
MD= 8.6 cm