Answer:
BC = 12 m
Step-by-step explanation:
Since DE is a midsegment then it is one half the measure ot the third side BC, thus
BC = 2 × 6 = 12 m
c
since there are 180 degrees in a triangle so :
65+72+y=180 add like terms
137 + y=180 now subtract 137
y= 180-137
y=43 degrees
It's for <em>n</em> = 1, 2, 3, …
