Mathematics, 11.10.2021 02:20 ricksterv5000

Here is a tunnel for a toy train. The diagram shows the cross section of the tunnel. AD is a semicircular arc of radius is 10cm. BC is a semicircular arc of radius 8cm. The length of the tunnel is 30cm. Work out the total area of all six faces of the tunnel. Give your answer in terms of π.

Here is a tunnel for a toy train. The diagram shows the cross section of the tunnel. AD is a semici

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Here is a tunnel for a toy train. The diagram shows the cross section of the tunnel. AD is a semicir...

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