Question

line jl and line km intersect at point h. find the three unknown angle measures in the figure. first, find m∠khl. m∠khl = 129 ° now, find m∠lhm. m∠lhm = □°

Explanation:

Step1: Identify vertical angle of ∠KHL

∠KHL and ∠JHM are vertical angles, so m∠JHM = 129°.

Step2: Identify vertical angle of 51° angle

The 51° angle and ∠LHM are vertical angles, so m∠LHM = 51°.

Step3: Confirm straight line sum

Check 51° + 129° = 180°, which is a straight line.

Answer:

51