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10.11.2020 •
Mathematics
Line KR bisects JKM. If mJKR = 81°, what is the mJKM?
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Ответ:
Step-by-step explanation:
Angle Bisector
An angle bisector is a ray that divides an angle into two congruent angles, each having a measure exactly half of the original angle.
We are given ray KR bisects angle JKM.
This means angle JKM is divided into two congruent angles JKR and RKM. We know:
Thus, the measure of angle JKM is twice the measure of JKR. Therefore:
Ответ: