Question

Una pirámide triangular regular tiene 15cm de apotema , si el lado de la base mide 6cm halla el area total.

Answer 1

A. total = A. base + A. lateral

A.base =

${l }^{2} = 6 { }^{2} = 36 \: cm {}^{2}$

A.lateral =

$\frac{p \times ap}{2} = \frac{24 \times 15}{2} = \frac{360}{2} = 180 \: cm {}^{2}$

A.total = A.base + A.lateral = 36 + 180 =216 cm2