Find the area of the square pyramid below

Question

anonymous · Answer

attachment

shamil98 · Answer

s² + 2sl = A + 2sl

 s,b = side, h = height and l = slant height

directrix · Answer

Is this total area or surface area? @dopegyal_

anonymous · Answer

doesn't say . :o

anonymous · Answer

Sorry to derail this question with my own question, but what's the difference?

(Anyway, I'll just suggest my usual method of adding up the areas of all the faces, if applicable)

shamil98 · Answer

Area is a measure of the region enclosed by a shape on a plane surface. 

Surface area is the area of the surface of a solid.

directrix · Answer

I misspoke. Lateral area or total area is what I meant to ask.

anonymous · Answer

total area

directrix · Answer

*Area* is a measure of the region enclosed by a shape on a plane surface.  --> In 3-D, this is volume.  @shamil98

directrix · Answer

The surface area of a pyramid can be found by taking 1/2 the perimeter of its Base times its slant height and then adding the area of its Base.

SA = 1/2 * (7 + 7 + 7 + 7) * 9 + 7*7

anonymous · Answer

Think of the triangles like this and it's a lot easier.
|dw:1381558807198:dw|

anonymous · Answer

175?

directrix · Answer

@dopegyal_ 

SA = 1/2 * (7 + 7 + 7 + 7) * 9 + 7*7

SA = ?

anonymous · Answer

175?

directrix · Answer

175?     That is what I got.

anonymous · Answer

(: GREAT!

directrix · Answer

For you! :)