The height of a regular rectangular truncated pyramid is 5 cm, the sides of the base are 8 and 6 cm, find the side edge of the pyramid.
| November 16, 2020 | education
Decision:
looking for base diagonals:
d1 = √ (36 + 36) = 6√2
d2 = √ (64 + 64) = 8√2
We draw the height from the top of the upper base to the lower one, it cuts off the segment √2 from the diagonal
Then from the right-angled triangle we find the side edge:
АА1 = √ (25 + 2) = √27 = 3√3
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