# Right Triangular Pyramid

on . Posted in Solid Geometry

• Right triangular prism (a three-dimensional figure) has a triangle base and the apex alligned above the center of the base.
• 1 base
• 6 edges
• 3 faces
• 4 vertexs

## surface area of a Right Triangular Pyramid formula

$$\large{ A_s = \frac{1}{2} \; \left(h_b\;a\right) + \frac{3}{2} \; \left(a\;h_s\right) }$$
Symbol English Metric
$$\large{ A_s }$$ = surface area $$\large{ in^2 }$$  $$\large{ mm^2 }$$
$$\large{ a }$$ = edge $$\large{ in }$$ $$\large{ mm }$$
$$\large{ h_b }$$ = height base $$\large{ in }$$ $$\large{ mm }$$
$$\large{ h_s }$$ = height side $$\large{ in }$$ $$\large{ mm }$$

## Volume of a Right Triangular Pyramid formulas

$$\large{ V=\frac{1}{6}\; h_b\;a\;h }$$

$$\large{ V=\frac{1}{3}\; A_b\;h }$$

Symbol English Metric
$$\large{ V }$$ = volume $$\large{ in^3 }$$  $$\large{ mm^3 }$$
$$\large{ A_b }$$ = base area $$\large{ in^2 }$$ $$\large{ mm^2 }$$
$$\large{ a }$$ = edge $$\large{ in }$$ $$\large{ mm }$$
$$\large{ h }$$ = height $$\large{ in }$$ $$\large{ mm }$$
$$\large{ h_b }$$ = height base $$\large{ in }$$ $$\large{ mm }$$