Thursday

November 27, 2014

November 27, 2014

Posted by **Laarni** on Sunday, July 14, 2013 at 9:57am.

- GEOMETRY(SURFACE AREA) -
**Steve**, Sunday, July 14, 2013 at 5:00pmlateral edge is an edge from the base to the vertex. As opposed to a base edge.

If the base edge is 6, the base diagonal is 6√2

Now draw a right triangle from the center of the base to the vertex, including one base corner.

(6√2/2)^2 + h^2 = (√34)^2

18 + h^2 = 34

h = 4

So, now we have height 4 and base edge 6, so the faces are triangles with

base = 6

height = √(3^2 + 4^2) = 5

lateral area is thus 4 * 1/2 (6)(5)

add the square base if desired.

- GEOMETRY(SURFACE AREA) -
**Ericka**, Monday, October 14, 2013 at 3:04pm18.63

**Answer this Question**

**Related Questions**

geometry - Find the lateral area of a regular hexagonal pyramid with base edge ...

geometry - 1. What is the lateral surface area of a square pyramid with side ...

Geometry - The base of a regular pyramid is a hexagon whose sides have length 5 ...

math - The base of a regular pyramid is a square whose sides have a length 8 cm...

GEOMETRY (SA oftriangular pyramid) - Find the surface area of a triangular ...

geometry(surface area) - What is the lateral surface area of a cone with radius ...

geometry - How do you find the lateral area and perimeter of a pentagonal ...

Geometry - What is the surface area and lateral area of a regular triangular ...

Geometry - When finding the surface area of a composite figure, which in this ...

Geometry HELP - The lateral surface area of a regular pyramid is 160 cm2 and the...