Two angles

The triangles ABC and A'B'C 'are similar. In the ABC triangle, the two angles are 25° and 65°. Explain why in the triangle A'B'C 'is the sum of two angles of 90 degrees.

Correct result:

x =  90 °

Solution:

A=25 B=65 C=180(A+B)=180(25+65)=90  x=A+B=25+65=90



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