The two given triangles ABC and GHI are equal. It is known that AB = GH, BC = HI, Angle C = 90 °,

The two given triangles ABC and GHI are equal. It is known that AB = GH, BC = HI, Angle C = 90 °, and side GI = 5 cm.Find side AC and angle I.

If the side of the first triangle AB is equal to the side of the second triangle GH and the side BC is equal to the side of the HC, then the side of the AC is similarly equal to the side of GI. That is, GI = AC = 5 cm. Therefore, the angle ACB of the first triangle is equal to the angle GIH of the second triangle, so C = I = 90 °