# Triangle in a square

In a square ABCD with side a = 6 cm, point E is the center of side AB, and point F is the center of side BC. Calculate the size of all angles of the triangle DEF and the lengths of its sides.

### Correct answer:

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Pythagorean theorem is the base for the right triangle calculator.

Pythagorean theorem is the base for the right triangle calculator.

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