You are making poster board boundary markers in the shape of square pyramids for a relay race. If you are including a 12 -inch square as the bottom and you want the slant height to be 14 inches, how much poster board do you need?

Question

gabylovesyou · Answer

@ash2326 Hey!! Can u help me Ash?

ash2326 · Answer

@Gabylovesyou my friend @apoorvk is helping you.

gabylovesyou · Answer

Thank you @ash2326 :D

apoorvk · Answer

|dw:1337411963583:dw|

In tri.ABC, you have the height AD = 14 (which is the same as slant height for the pyramid)
The base BC of the triangle = 12 (which is the same edge of the square base)

Can you find the area of the tri.ABC?