Question

A square has a side length of 20cm. If a diagonal is drawn, what is the length of the diagonal? Give the exact value (radical form), not an approximation. Use special triangles.

Answer 1

uhm, elaborate please?

Answer 2

A square is simply a combination of two 45-45-90 triangles with legs 20

Answer 3

Pythagorean theorem comes to your rescue.

Answer 4

Thus the digaonal is in effect the hypothenuse of either triangle

Answer 5

As foolish for math said, we simply apply the pyhthagorean theorme

Answer 6

Baha, I understand now thank you very much.