Monday

March 2, 2015

March 2, 2015

Posted by **Jessica** on Wednesday, June 1, 2011 at 1:18am.

- Math -
**Mgraph**, Wednesday, June 1, 2011 at 3:21amSurface Area=Base Area+Lateral Area

SA=BA+LA

The side of the octagon

a=2*apothem*tan(45/2)

BA=0.5*8a*apothem=8*apothem^2*tan(45/2)

LA=4a*(slant height)

slant height=sqrt(height^2+apothem^2)

tan(45/2)=0.4142

**Answer this Question**

**Related Questions**

Geometry - Find the surface area of a right octagonal pyramid with height 2.5 ...

geometry - Pyramid has a base 6 yards X 6yards. Its height is 4 yards. Volume= ...

geometry - The limestone blocks from which an ancient pyramid was made weigh ...

math - looking at a square pyramid, if the size of the base remains the same and...

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

algebra - A landscaper is designing a flower garden in the shape of a trapezoid...

Math - Find the area of the triangle with the base 1 2/5 yards and height 5/9 ...

Mathematics - OPQRS is a right pyramid whose base is a square of sides 12cm each...

math - find the base of the triangle of a triangular prism with a height of 8 ...

Maths - Solve the equation:a right pyramid with vertical height stand on ...