The answers are as follows:
A trapezoid with its two nonparallel sides equal.
Given:
<BAD =65
As, MN is mid segment
So,
BC= 2CM
BC = 16
Now, ABCD is isosceles trapezoid
BC= AD
So, AD= 16
and, Using mid- point theorem
MN= 1/2 AB
MN = 1/2* 22
MN= x = 11
Also, co- interior angle sum is 180 in trapezium
<BAD + <BCD = 180
<BCD + 65 =180
<BCD = 115
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