Le Matou matheux : solid shapes

The glassed-in part of this street lamp is made up of two pyramids with a squared base and side 20 cm.

The lateral edges of the pyramid SABCD are 40 cm. The lateral edges of the pyramid TABCD are 60 cm.

Calculate the volume of the glassed-in part.

OB² =

OS² =

OT² =

volume= round to the nearest whole number



	The glassed-in part of this street lamp is made up of two pyramids with a squared base and side 20 cm. The lateral edges of the pyramid SABCD are 40 cm. The lateral edges of the pyramid TABCD are 60 cm. Calculate the volume of the glassed-in part.
	OB² = OS² = OT² = volume= round to the nearest whole number

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The street lamp