Posted by **keisha** on Sunday, November 11, 2007 at 10:53pm.

Find the lateral area of a regular pyramid whose base is a square, whose slant height is 5 m, whose height is 3 m.

I think that the answer is 60. I subtracted 3 squared from 5 squared and I got 4. I multipled 4 by 2 and I got 8. I made a formula 3(1/2(8 x 5)) and I got 60 as my lateral area. Is this right?

- math -
**drwls**, Sunday, November 11, 2007 at 11:24pm
If the slant height is 5 and the actual height it 3, then it is 4 m from the center to the middle of any of the squate sides. A side view would be two 3-4-5 right triangles, back to back.

The base length is therefore 8 m. Each trangular side has an area of

Aside = (1/2)8*5 = 20 m^2. The total lateral area (4 sides) would therefore be 80 m^2.

I think you mistake was assuming that there are three triangular sides. There are four

## Answer This Question

## Related Questions

- math - Find the lateral area of a regular pyramid whose base is a square whose ...
- math - Find the lateral area of a regular pyrmid whose base is a sqauare, whose ...
- Geometry - Determine the slant height of a right pyramid whose lateral area is ...
- geometry - Determine the slant height of a right pyramid whose lateral area is ...
- GEOMETRY - FIND THE LATERAL AREA OF A RIGHT PYRAMID WHOSE SLANT HEIGHT IS 18mm ...
- math - find the height of a pyramid whose square base measures 30yd on each side...
- Mathematics - OPQRS is a right pyramid whose base is a square of sides 12cm each...
- MATH! PLEASE REPLY ASAP! - OPQRS is a regular square-pyramid whose base has ...
- geometry - Calculate the lateral area and surface area of a pyramid whose height...
- Geometry - How do you calculate the lateral area and sueface area of a pyramid ...

More Related Questions