MENTAL MATH For items 1 to 6, given: AD 1 hisector BC. I. Why is AB- AC? 2 Why is D the midpoint of BC 3. Why are LADB and LADC right angles 4 Why is AABC isosceles 5. Why are 2B and 2C congruent! 6. Why are As ABD and ACD congruent?

Q: 16. Identifyeach of the following from the dia gram: a. Median b. Angle Bisec tor c. Perpendicular…

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A: Consider the figure for the following question, We use law of cosines to find side BC

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