A prism with a triangular cross section has volume 120cm^3. The base of the triangular face has length 6cm. The width of the prism is 10cm. The height of the triangular face is h. Find h.

Cross sectional area: half base x height = (6/2)h = 3h , Volume of prism: Cross sectional area x width, this gives: 3h10 = 120, rearrange: 3h = 12, Find h: h = 4cm.

Answered by Jake V. Maths tutor

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