Math Geometry

Geometry Question:
Prove the symmetric Property for congruence of triangles.
Given: ∆ABC≅ ∆DEF
Prove: ∆DEF≅ ∆ABC

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asked by Reigel
  1. The radius of the base of a cylinder is 4x cm is 27 cm and its height is 33 cm. Find the surface area of the cylinder in terms of 3.14

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