Which pair of expressions are equivalent? 6 t + 5 + 2 t and 11 t + 5 p + 3 + 2 p and 5 t + 3 3 n + 7 and 4 n + 7 2 x + 2 + 7 x and 9 x + 7

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The median segment divides the triangle into 2 isosceles triangles and everything else is trivial.|ad|=|bc|2=|bd|soδadb  is isosceles with∠dab=∠dbasimilarlyδadc  is isosceles with  ∠dac=∠dca∠cab=∠cad+∠bad=∠acb+∠abctherefore∠cab  is a right angleandbc  is the hypotenuse of a right-angled triangle.hope this