# Math Geometry

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

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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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In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB=DE, BC=EF, and ∠A=∠D, then we cannot deduce that ABC and DEF are congruent. However,

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