For isosceles
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Elementary Geometry for College Students
- Which of these two polyhedrons is concave? Note that the interior dihedral angle formed by the planes containing EJF and KJF is larger than 180 .arrow_forwardRefer to the prisms of Exercises 1 and 2. Which of these have symmetry with respect to a point?arrow_forwardIn Review Exercise 27 to 30, supply the missing coordinates for the vertices, using as few variables as possible. Parallelogram MPQNarrow_forward
- In ABC, M is the midpoint of AB and N is the midpoint of AC. If MN= 3x-11 and BC= 4x24, find the value of x._arrow_forwardRefer to the prisms of Exercises 1 and 2. Which of these have symmetry with respect to one or more planes?arrow_forwardFor a given triangle such as ABC, what word describes the point of concurrency for athe three perpendicular bisectors of sides? bthe three altitudes?arrow_forward
- Given: Isosceles ABE with AEBE; also, D and C are midpoints of AE and BE, respectively. Prove: ABCD is an isosceles trapezoid. Exercises 17, 18arrow_forwardIn the drawing, ABDCEF with transversals l and m. If D and C are the midpoints of AE and BF, respectively, then is trapezoid ABCD similar to trapezoid DCFE?arrow_forwardCM is the median for ABC from vertex C to side AB. a Name two line segments that must be congruent. _ b Is 1 necessarily congruent to 2?_arrow_forward
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