AC Lim's answer to Amelie tan's Primary 6 Maths Measurement Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
12461 answers (A Helpful Person)
1st
180-73-73 = 34
180-34-34= 112
360-112-90-90= 68
Answer = 68°