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Xiaoqiao mathematics
Answer: Solution: Haitao's height 1.6 meters, and the shadow length is 2.4 meters.

The shadow of the 8-meter-high flagpole DE is: 12m,

The measured length of EG is 3m, and that of HF is1m..

∴GH= 12-3- 1=8(m),

∴GM=MH=4m.

As shown in the figure, let the center of the bridge be O, connecting OM and OG.

Let the radius of the circle where the bridge is located be r,

MN = 2m,

∴OM=(r-2)m.

In Rt△OGM, from Pythagorean theorem:

∴OG2=OM2+42,

∴r2=(r-2)2+ 16,

Solution: r = 5.

A: The radius of the circle where the bridge is located is 5m.