Mathematics, 08.11.2019 18:31, lollok
The surface area of this triangular pyramid, whose base and lateral faces are congruent equilateral triangles, is __ square inches.
Answers: 2
![SA=4[\frac{1}{2}(b)(h)]](/tpl/images/0365/7622/9afd4.png)
![SA=4[\frac{1}{2}(15)(13)]=390\ in^{2}](/tpl/images/0365/7622/c5799.png)
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The surface area of this triangular pyramid, whose base and lateral faces are congruent equilateral...
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