Question

Please help me find total outside surface area and volume of object in picture

Answer 1

The shape is a triangular pyramid.

The total surface area of the triangular pyramid is;

`TSA=3((1)/(2)*9*9.46)+(1)/(2)(9\sin 60^o*9)`
`\begin{gathered} TSA=3(42.57)+(1)/(2)(70.14) \\ TSA=162.78m^2 \end{gathered}`

Also, the volume of the triangular pyramid is;

`\begin{gathered} V=(1)/(3)((1)/(2)(9\sin 60^o*9)*9.1) \\ V=(1)/(3)(319.17) \\ V=106.39m^3 \end{gathered}`