Prove: FGH JGH Statements Reasons _____________________________________ FHG JHG, FGH JGH ____________________ _____________________________________ ______________________ ____________________________________ FGH JGH ____________________________________ Ex 6: In the diagram at the right, is the midpoint ofand. E Prove that Explain giving reasons for each corresponding part. ABE CDE. Statement: Reason: In the diagram at the ***Ex 7: ∆ADB ∆CDA ∆CDB. Is equilateral? your reasoning. Explain ∆ABC The sum of the measures of and is 360. ADB, CDA, CDB Find mBDC. Find mDBC and mDCB. Explain why the angle measures in part (c) are congruent. Explain why is equiangular. ∆ABC ****Ex 8: Given: Sketch the triangles and find x, DE and the perimeter of . Sketch: Honors Geometry Lesson 5-4: Use Isosceles and Equilateral Triangles
Prove: FGH JGH Statements Reasons FHG JHG, FGH JGH ____________________ ______________________ FGH JGH _____________________________________ _____________________________________ ____________________________________ ____________________________________ Ex 6: In the diagram at the right, E is the midpoint ofand. Prove that ABE CDE. Explain giving reasons for each corresponding part. Statement: Reason: ***Ex 7: In the diagram at the ∆ADB ∆CDA ∆CDB. Is ∆ABC equilateral? Explain your reasoning. The sum of the measures of ADB, CDA, and CDB is 360. Find mBDC. Find mDBC and mDCB. Explain why the angle measures in part (c) are congruent. Explain why ∆ABC is equiangular. ****Ex 8: Given: Sketch the triangles and find x, DE and the perimeter of . Sketch: Honors Geometry Lesson 5-4: Use Isosceles and Equilateral Triangles