Given a rectangle with sides 4 cm and 5 cm, find its diagonal.
| November 29, 2020 | education
Rectangle ABCD:
AB = CD = 4 cm
BC = AD = 5 cm
Consider the triangles AВD = DCD
they are rectangular, which means that by the Pythagorean theorem we find the diagonals:
5 in square + 4 in square = root of 41 = diagonal.
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