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12 November, 13:35

The prism shown has a volume of 35cm³. Work out the height of the triangular cross section. The length going back is 7cm and the bottom section of the triangular cross section is 4cm.

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  1. 12 November, 17:15
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    2.5 cm

    Step-by-step explanation:

    The volume of a triangular prism is cross section * length.

    The cross section area is the triangle area. The triangle length is 4 cm, the height is not given. The length of the triangular prism is 7cm.

    4 * h * 1/2 * 7 = 35

    14h = 35

    h = 35/14

    h = 5/2

    The height of the triangular cross section is 2.5 cm.
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