🔺️BCE ~ 🔺️JKL. If mLB =89°, mLC = 13°, and mLE = 78° what is mLJ?
To find mLJ, we need to first find the measure of angle J.
Since BCE ~ JKL, we know that corresponding angles are congruent. Therefore,
mLJ = mBE.
We are given that mLB = 89°, mLC = 13°, and mLE = 78°.
Since mLB + mLC + mLE = 180° (by the angle sum property of a triangle), we can substitute the given values:
89° + 13° + 78° = 180°.
Therefore, 180° - 89° - 13° - 78° = mLE.
Hence, mLJ = mLE = 180° - 89° - 13° - 78° = <<180-89-13-78=0>>0°.