Hello thank got I take geometry I got you
A
1. Because of the SAS property
( side-angle-side)
Because the line in the middle is congruent same with the 2 lines that mean that both lines match and the right angle
The problem is easy after you know that
2. 5
3. 62
All it is 31 times 2
B.
C is 51 and you can tell because the 2 lines are parallel
And BAD is also 51 because of the alternate angle theorem