Answer:
The first and second one.
a. and b.
Explanation:
a. m∠JKH+m∠JKL=180°
b. m∠JKL+m∠JLK+m∠KJL=180°
c. m∠JKH=m∠JLK
d. m∠JKL+m∠JLK=90°
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