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.

Result

x =  90 °

Solution:

Solution in text x =







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To solve this example are needed these knowledge from mathematics:

See also our trigonometric triangle calculator.

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