You are making poster board boundary markers in the shape of square pyramids for a relay race?

You are making poster board boundary markers in the shape of square pyramids for a relay race.If you are including an 8-inch square as the bottom and you want the slant height to be twenty-nine inches, much poster board do you need?





A five hundred twenty-eight square inches





B five hundred seventy-six square inches





C six hundred forty square inches





D seven hundred sixty-eight square inches|||(8 X 8) + 4[(1/2)(8)(29)] = 528 square inches