Geometry question! help please!! Find the lateral area for the regular pyramid.

Question

anonymous · Answer

attachment

anonymous · Answer

Multiply lengthxwidth!

anonymous · Answer

so you would do 2*3 but that would not be the answer because it has to have a sqrt in my answer

directrix · Answer

Lateral Area of a regular pyramid:   ½ perimeter of base × slant height.

directrix · Answer

@ClaireMae17   What is the slant height of the pyramid?

anonymous · Answer

3?

directrix · Answer

I don't know. Look at the black, red, and blue triangle inside the pyramid as shown on the attachment.

anonymous · Answer

so since that it is a triangle you have to first figure out the area of that which is 1/2 BH and then go from there right?

directrix · Answer

In this right triangle, the height of the solid is 3. The slant height L is the length of the hypotenuse of that right triangle. 

The slant height of the pyramid is the length of the altitude of one of the 4 congruent triangular faces on the surface of the pyramid.

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