In a regular triangular prism ABCA1B1C1, the sides of the bases are equal to 1, the side edges are equal to 11.
| August 6, 2021 | education
In a regular triangular prism ABCA1B1C1, the sides of the bases are equal to 1, the side edges are equal to 11. Find the sectional area of the prism by a plane passing through the midpoints of the edges AB, AC, A1B1 and A1C1.
Since the sides are 11. Then both the bottom and the top will be equal to 1/2, because the middle line of the triangle will be equal to half of the base. So the area will be equal to:
S = 11 * 1/2 = 5.5 units squared.
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