Mathematics, 03.02.2020 05:54 Jorjalilli1318
The base edge of the regular triangular pyramid is b=10 cm and altitude of the base hb ≈ 8.66 cm. the slant height of the pyramid is k=8 cm. find:
lateral area of the pyramid
Answers: 3
![LA=3[\frac{1}{2}(b)(k)]](/tpl/images/0495/4102/76cf6.png)
------> the slant height![LA=3[\frac{1}{2}(10)(8)]=120\ cm^{2}](/tpl/images/0495/4102/a5767.png)
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